Feedback on rejected photos

Your first: noise (

), focus, exposure, framing.

Your second: over saturation, focus, exposure, white balance.

Your third: focus

noise, exposure

(no blacks, missing contrast).

The quality of the assets here is bad, but as a matter of a fact, flower pictures are very well represented in the database, so your asset needs to be wonderful. So even a simple flower picture, otherwise correctly presented, could get a refusal for quality issues if there is the slightest blemish.

Your last: sensor dust

, noise, focus, contrast, exposure. In addition, it is leaning, and I don't see very much commercial appeal to this one.