What needs to be improved in the structure and color of these photos? I am a beginner in photography, please give me more advice.

Just briefly talk about the first picture! 1. The horizon is uneven and the leveling point is good. 2. The framing range is not enough and the scene is blank. Can highlight the key points. 3. Turn down the aperture and shoot with the aperture of 1 1- 16. The image will be fresher, and the highlights and dark lights will be flatter. 4. Reducing the exposure color by 0.3-0.5 will be more intense. Sorry, outspoken people, just talk nonsense.