Please provide feedback on the following images which havent been accepted

Even if these are accepted, that's no guarantee of sales. 

What was the reason for rejection?

Also you're competing with 39 million other abstract backgrounds & wallpapers plus millions more free ones. Customer demand for backgrounds & wallpapers isn't that great. 

When you upload the full size images, also indicate the rejection reason that Adobe supplied.

These are way too small for us to provide a helpful crititque. Please upload one or two at the size as submitted. What we find in those one or two images will probably have the same issues in the others.