All of my photos have been rejected

The colors and light are the problem. Check the requirements and forget about too artistic processing of your pictures. 

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

What you posted might be good on Instagram or Flickr.  But Stock is not social media.  It's a business for sourcing high quality assets for use in commercial projects.  Emphasis on commercial use.

Adobe customers expect perfect composition, exposure, color balance, and focus.  Or else, they won't buy it.

Have a look at the Stock Contributor User Guide for more tips.

• https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
• https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html
• https://helpx.adobe.com/stock/contributor/user-guide.html/stock/contributor/help/photography-illustrations.ug.html
• https://helpx.adobe.com/stock/how-to/tips-stock-image-acceptance.html

Before you submit, compare your work with current Stock inventory to see how yours measures up.

Good luck with your next submission. 🙂