This AI image was rejected

Hello,

Firstly, you have artefacts as pointed out by @Abambo  - this will cause rejection, and secondly cropping; it's too tightly cropped. It needs some breathing space! As @daniellei4510 said, allow room for cropping and text.

You're missing artefacts as seen at 100%:

It was an easy exercise for the moderator, as the asset is full of artefacts in every inch of this asset:

In addition, all your lines (in the feather) expose aliasing.

I'm not a birds specialist, but I doubt that the claws are anatomically OK, not to speak about the artefacts, seen at 100%:

Looking at the background on your preview image, I saw "noise" that disturbed me. Checking this at 100% confirmed my suspicion:

I've indicated a few issues that might be the reasons for refusal. That said, I always recommend different ratios other than the default AI square. Allow room for cropping or adding text when and where possible to make it more commercially viable.