Frames are not allowed. So that was a fast refusal. But looking at your pictures at 100% I also see artefacts that have been introduced by the (in camera?) postprocessing. It looks like there is an agressive noise cancelation, that makes the structures kind of flat, paint like. Also, there are kind of blocks where there are hard borders from one object to an other.
The picture with the people also requires model releases.
I know that phone images are accepted, but the same quality standards are applied to these images than those taken with a full frame or better camera sensor with the best lenses you can put on. For phone images the conditions must be optimal. Keep the pictures as what they are: nice memories, but unfit for Adobe stock.
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