Please let me know why this was rejected. Have a couple of images to upload in similar style.
What rejection reason was given? Is this real or AI Generated?
Did you describe it as an illustration (NOT a photo) and follow Adobe's other rules for AI? (They are new, a lot of people haven't seen them)
Am not really sure about that. Should I resubmit?
You must read and comply with all of the requirements noted on the help page for Generative AI:
However, even if you do all that, I think it will still earn a "quality issue" rejection because it's underexposed and the wing is quite unfocused with little feather detail.
Your picture is not the full size. Check that at 100%. With no visible artefacts, you can resubmit.