quality problem

First: Exposure

It's under exposed.

Second: Exposure

Third-fifth: Exposure … all assets are under exposed.

Some may also have focussing problems.

Soap bubbles: artefacts and noise. 

Last: underexposed:

The peak to the right is the white surface. And to the right of the white, there is no information. You need to learn to interpret the histogram.  In addition, you also have noise and artefacts.

You need to check your assets at 100% and 200%.

If you are new to stock, you should consider these resources: https://helpx.adobe.com/stock/contributor/tutorials.html
Please read the contributor user manual for more information on Adobe stock contributions: https://helpx.adobe.com/stock/contributor/user-guide.html
See here for rejection reasons: https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
and especially quality and technical issues: https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html

If you are a generative AI contributor, please look into these instructions and follow them by the letter: https://community.adobe.com/t5/stock-contributors-discussions/generative-ai-submission-guidelines/td-p/13549435

In the first 6 rock images, focus is the issue due to shallow depth of field. While the center of the rock might be sharp, focus falls off towards the edges which are too blurry. In the 7th image nothing is in focus. In the final image, there is debris on the background.