AI Rejected Image

I have recently dove into submitting my photos and images to Adobe Stock to generate a few extra pennies, and as a new hobby. Being new, I am unsure why most of my images thus far have been rejected. Specifically, I created an AI generated little creature, off an image taken years ago of a little wool monster my daughter had made for school, its unique and AI generated, but it got rejected with this explanation "Thanks for giving us the chance to consider your image. Unfortunately, this image doesn't meet our quality standards so we can’t accept it into our collection." What could I do differently, or what was wrong with the image for it to be rejected, it met the resolution and file size guides. Any feedback would be greatly apprecited, and maybe some guidance and advise.