Requesting feedback on rejected images

-I will also emphasize composition as a factor for the rejections. Think of giving a client more breathing space to add whatever  they want to the image. I'm wondering why you decided cropping as you did... Lets say it's a breakfast image, crop the coffee, but don't crop the bred, in another photo you left parts of dishes that cause more distraction and little contribution to the image.

-Styling food photography is KEY to great photos, this requires intuitive good taste and or looking at beautiful photos, think Martha Steward, anything she touches is magic. And pay very close attention to food crumbs that will result in not buying your photos. 

-Personally I love shooting with shallow depths of field, but have to always remind myself not to over do it. I think you went too far with you f stops in all the photos... also pay close attention to what your point of focus is, and focus on that.

In your contribution variations you can switch your focus as you see fit.

-If you are using Photoshop, learn to play with Camera Raw tools, Adobe is advancing this very rapidly and it will help you do many kinds of enhancements that will blow you away.

Overall I give you a B+ for putting the effort. I realize you play with the props you had available. But if you go to a place like TJ Max Homegoods, you can buy a bunch of beautiful kitchen props, spend a day shooting all of it, then go return it when you are done. And one more thing I want to say:

Get ideas anywhere you want, includding from adobe's buyers site then give them your own twist. ALWAYS remember 

you are creating your own work, NEVER limit your thinking with what you are competing against, or how many millions of images already exists of any given theme.

There's only one you, and if you keep polishing yourself, you  will create awesome images that buyers will want to buy.

Cheers! 

ps. I played for about a minute with you r shot using Adobe Camera Raw in Photoshop, compare it to the original and see the difference. You tube has tons of videos showing how to use it.