The 1st photo is too blurred. In the 2nd photo I only see flat areas instead of details. Here you can find out more about the technical requirements: https://helpx.adobe.com/stock/contributor/user-guide.html/stock/contributor/help/quality-and-technic...
The first photo is out of focus and the composition is bad. 2nd photo is oversaturated and burnt out in the light area.
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