065, 045, and 016 are depth of field related I suspect. I think the depth of field is too shallow.
The cut out on 052 could use some smoothing. The color tone of some of the finger creases also appear unnatural.
I'm genuinely unsure about 187. The skin tones could use some adjustments, but I wonder if that's the reason.
Were all these rejected for Technical Issues? I ask because I see some potential property violations.
The pad of paper has a design on it. It is die cut in the shape of cat's head. Did you create that design yourself or did you buy it that way from a store? The manufacturer of retail products may have issues with their product being used commercially.
Ditto for the baby's sports shoe. Big name shoes & markings are protected by design patents.
If you're new to Adobe Stock, please read these links:
Yes, all images are flagged as Technical Issues. This is not a children's shoe, this is a toy, there are no logos.
This is not a children's shoe, this is a toy, there are no logos.
Same goes for toy designs that are protected by patents.
I defer to the Adobe Stock Contributor's User Guide. See below.
Some photos have a shallow depth of field, try shooting them using the (Focus stacking)