What's wrong with my image quality

Rough textures can be perceived as "photographic noise."

In addition to the fact that some of the images are monochrome, which is not allowed, there are some other quality issues revealed upon close inspection.

Dust spots and a weird shadow. Also, a couple tips: Adobe prefers color assets over black and white and avoid using the default square format of AI. Allow room for the buyer to add copy and crop as desired.