Photographic problems

That's not necessarily true. In the actual retouching process (not just PS, of course), it is difficult to raise the saturation. Once supersaturated, the picture will be ugly. By modifying the contrast, the picture will have a translucent feeling, but many details will no longer exist. Generally, photos with full colors and very clean pictures are taken with high-quality fixed-focus lenses, and the restoration of that color and level can not be repaired in the later stage.

This one must be out of focus. The retouching can't be so bright. Moreover, this cool tone can be completely solved by lowering the color temperature in the early stage.