Please help to explain following "similar image" rejections
I have some confusions over the reasons that some of my photos got rejected. Hopefully I can learn some insights from your expertise with Adobe Stock
1) "SIMILAR IMAGE" rejection

the (left) portrait orientation got rejected

the (right) portrait orientation got rejected
2) "ARTIFACTS PROBLEM" rejection
bellow are a series from 100% view crop. I tried to crop at the color gradation so you can have better judgement



Crops above are from a series of shots that has the same ISO and lightings. below is a crop from the approved image (the landscape orientation in 'similar reason" above).

I sincerely appreciate for any help and feedback. Many thanks in advance - Joe
