Fried fish rejected for technical reasons

Thanks for your answers. I cleaned the plate and table up and adjusted exposure a bit...and it was accepted!

Food photography is a very special talent. 

You need multiple light sources, a tripod and a good camera angle that invites viewers into the scene. IMO, overhead shots rarely do it justice.  Most importantly, the food must look tasty and have an appetizing color and presentation. 

Believe it or not, most food photographers shoot raw or partially cooked foods that have been painted with food coloring to appear more visually appetizing.  And they stage food with other pleasing design elements (napkins, placemats, cutlery, etc..) that lend texture and good color contrast to the scene.   

Also you're competing with 25 million other food photos in Stock's database which makes this an especially tough keyword category. 

Adobe Stock Food

I Think the glass, which is poorly cropped, should be removed.

The lettuce is overexposed. If you look at the histogramm, you will see that the contrast is not good and

that the mid tones are missing.