Why didn't my photos accept ?

You got a refusal reason. you should post that with one or two of your images at original size, so that we can check them. Image moderation is done by humans and they refuse for reason. Only high quality assets that follow certain rules are accepted.

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

Hello,

Just to clarify, we are a community of users like yourself and cannot accept or reject photos. What you can do is to post an example of your rejected photo and other members of this community can help you to find out why the photo was rejected.

Look at these guides to help you get started:

https://helpx.adobe.com/content/dam/help/en/stock/contributor/Adobe_Stock_Contributor_Guide.pdf

... and give us the reason that Adobe already told us. 

We can help you understand what is standing between your work and making suitable world-class commercial photography. Perhaps.

post a phot that was rejected, That way we can help.