What should I pay attention to when drawing colored still life?

Matters needing attention in color drawing:

First, water students can start painting gouache after they have a little understanding of the basic theory and techniques of gouache painting. One of the keys to gouache painting is to use water. Proper use of water can effectively shape the body and express the color. Water is not successful, painting is not successful. Gouache painting is a kind of painting in which powdered pigments are mixed with water. Pigment contains colloid, which will have different effects after dilution with water. Generally speaking, you should use as little water as possible when painting gouache still life, and cherish water as gold. Water and color should be coordinated, with more colors and more water, less colors and less water. The nib is mainly colored and dipped in water. When one color is used up, the nib should be washed with water, squeezed dry with absorbent cloth, recolored, and then dipped in water to avoid touching the next color. It is very important for beginners to form this habit. Light, thin and transparent objects need a little more water. Without water, they are easy to accumulate dust and dirt, so they are fresh when painted. When the water dries, they are pan-colored, light, gray and dull. Less water and multi-color are easy to dry, dry and astringent, showing no texture and luster, which is not conducive to color convergence. The bright part is slightly thinner, so it is faster to use a pen. Use white paper background, the color is used successfully once, and the color is beautiful and clean. The dark part needs less water, more colors and more effects. Second, color matching is the key to rich gouache color. Improper color matching will lead to raw, gray, dirty, messy, fire and vegetables (pseudo color). Generally speaking, after mastering the skills of using water, when painting, analyze the color of any object into color levels and show them step by step. The main object and the bright part of the object should be painted thicker, and the secondary object and background should be painted thinner. In order to make pictures and objects have rich colors, the skill of color matching is to spread pigments on the palette and add other colors one by one around the inherent colors of objects to form a series of colors that are both related and different, showing a rich color system. Specific method: 1. Give priority to the main color and color of the picture, and choose any inherent color, such as red, yellow and green, as the preferred color. 2. Draw any object, select the inherent color, spread the pigment of this color on the palette and add it around it one by one to bring up a series of hues. Such as apples-choose yellow to draw the semi-bright part, and add a little white powder to the bright part on the basis of yellow and dark color. The highlight can be left blank properly, and a little purple is added on the dividing line between light and dark, so that the yellow apples are light yellow, yellow, medium yellow, green yellow and dark yellow in turn. In this way, there are both connections and differences between colors, and if used properly, they can show a rich sense of color and volume. Pay attention to the expression of apple's three-sided pentatonic. 3. The thickness of the pen color should be treated differently. Generally, it is advisable to cover with white paper, and the bright and semi-bright parts are slightly thinner. Use white paper as the backing to make the color bright; The dividing line between light and shade and the dark part should be painted thicker; The hue of bright and semi-bright parts is not allowed to be dry, and it can be painted thicker. 4. In the color series, colors should be added, not too many kinds (easy to get dirty), avoiding the same amount (easy to get gray) and repeatedly stirring colors (not fresh). Add black and white bit by bit, not too much at once (easy to get dirty). 5. If the hue is not clear or the color is too different from the adjacent strokes, it is dirty. You should wash your pen and readjust it. A good painting should be stain-free. Any color has a different hue. The dirty color makes the painting look gloomy, dull and dull.

Third, pay attention to the direction, block surface and speed when modeling with a pen. The speed of using the pen should be prioritized, and the stroke arrangement direction of the color block should be based on the structure and performance needs of the object. The block surface depends on the specific position of the object to be drawn and the size of the fast surface to be drawn. When using a pen, you should set the shape according to the volume law and potential of the object. The basic skills of using a pen are: 1. Swing: adjust the paint to a moderate thickness, look at the painted part, lift it gently, and spread it in place steadily, with a slightly slower speed. 2. Brush: Use a large or light pen, which contains more pigment and water, and can quickly spread out the big tone relationship (avoid repeated flat painting, but leave a blank appropriately). This brush method is suitable for drawing the background or background color of interlining and large objects. 3. Embedding color: look at the part to be painted with a small pen, press the color in place with a pen, and then bring it back quickly. Suitable for drawing details and places with small projection area and light or deep coloring. 4. Hook: Similar to mosaic, there are two kinds of hooks and pens, which are mainly used for drawing details. 5. Kneading: The transition of two colors side by side is too stiff or obvious. You can mix colors properly or contain a small amount of water, and gently rub them back and forth to make the colors naturally connect and the transition is rich and attractive. 6, point: use a small pen to express subtle places and trivial shapes. 7. Wipe: use the pen quickly, the pen and color should be dry, and only the nib is in contact with the paper. Suitable for drawing reflections and highlights, creating fluffy or rough texture effects. 8. Washing: In case of special smoke or hazy effect, and inaccurate or uncoordinated color matching, you can wash with a colorless pen with more water, and then use a dry pen to absorb the pigment. This method should not be used in many ways, otherwise it is easy to dirty the color blocks of the painting and cause discoloration by scrubbing the picture repeatedly.

Fourth, after mastering the water method, color matching method and brushwork, we must also master the modeling method. First of all, we should analyze the shape of the object to be painted, the direction and area of the surface, the block degree and the inclination of each surface, and use different strokes to lay out the structural direction along the surface, so that the colors of the object are vivid and orderly, which not only shows rich colors, but also creates shapes and structures. Specific practice: 1. Brush strokes should be displayed with a pen after analyzing the structure and block surface of the body, and arranged according to the direction of the body or rotation. Block surface should be accurate, and the connection should be easy and natural. 2. Use large, medium and small pens according to different places. Generally, large blocks are paved with large strokes into large tones of the picture, then connected with middle strokes, and finally perfected with small strokes. 3, dry, wet, thick, thin depending on the physical condition, the primary and secondary. Generally, the subject and object should be thick and dry, and the secondary object should be wet and thin. 4. Every painting should be changed to be slightly deeper or shallower. After drawing one color, wash the pen, squeeze out the dirty water, and then draw a second color to keep the pen fresh and clean, so as not to dirty the picture; Change the stroke, too. 5. The background and interlining should be represented by large strokes and color blocks. 6. The highlight of the highest part of all objects is finally colored. Attention should be paid to ① the size of brush strokes when modeling; (2) the directional background of the pen and the block surface; (3) the change of color depth.

5. Adjust a painting until the overall color relationship of the picture is complete. Before the end of a painting, the color of the picture is often dim or gloomy and chaotic. At this time, it is necessary to emphasize the bright side and highlight, deepen the dark part and projection, and handle the color contrast relationship of the picture, such as the background of dark objects is shallow and the background of light objects is deep. Grasping the hierarchy of black and white ash and the relationship between cold and warm, using it properly and adjusting it moderately can achieve twice the result with half the effort. Adjustment is divided into tone adjustment, color adjustment and shape adjustment. 1. Tone adjustment: there are mainly the deepest color series, the middle color series and the bright color series. 2. Color adjustment: series adjustment of main colors, series adjustment of secondary colors and contrast colors, adjustment of cold and warm colors, and reconciliation of cold and warm colors. 3. Shape adjustment: the main object should be drawn carefully, fully and accurately, the secondary object should be sketched slightly, the appearance should be accurate and vivid, the contact should be relaxed, natural and orderly, the priorities should be clear, and the details should be appropriate. The color of the picture is black, white and gray, and the layers are rich and orderly, deepening the deepest and brightening the brightest, which opens up the color space of the whole picture.

Source: Qingyang Art Online Education