Quality Issues rejection on AI generated content

Hello Adobe Stock Community,

I am submitting AI images to Adobe Stock, but the bulk of my submissions have been rejected due to "Quality Issues".

I aim to produce clean, professional-grade stock photos, but I am struggling to pinpoint the exact technical flaws causing these rejections when the rejection note makes no reference to the specific reason for rejection (not a terribly useful system). 

I have attached a few examples of my files rejected for quality. I would really appreciate any notes from experienced contributors that can identify specific issues. Many thanks, JK