Problem to upload paint photos

Please give the exact refusal reason. This is important so that we do not need to guess. You may also look up the contributor documentation for more information about refusals. https://helpx.adobe.com/stock/contributor/user-guide.html?topic=/stock/contributor/morehelp/review.ug.js

First you are not allowed to sign your artwork. The buyer needs to buy it "anonymously" without reference to you. Second you need to provide a property release asserting that the artwork is yours.

I suppose that when you correct those things the artworks will get accepted.