
Cuddling: there is missing detail in the fur, because that part is overexposed.

Watching: same, but in addition, the face needs to be sharp. Portrait shoots need the eyes to be crisp sharp. The face is also missing contrast.

Same for the wolf.

This image is quite small and we will have some difficulty to asses the quality. But I fear that the picture is not sharp. In addition, it could get a little push.
Look at your pictures at 100% and/or 200% for optical defects. Try to equilibrate the exposure to get a correct histogram. Pay attention to the picture composition. Your chances are quite good if you deliver quality pictures. Many of the contributors are not doing this professionally. At least they did not start as stock photographers.
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