I'm a newbie here, so I have upload 7 photos for submission and unfortunately, all of them rejected as a and I wonder why is that?
I uploaded 4 resized photo here (Max 800Width), I appreciate any comment about the problem.
The first 2 was rejected as IP, but it's strange since there are lots of pictures of the Vatican museum here, so what's the difference?
The last 2 was rejected as a technical issue, the third picture is same like this photo on the website.
Your pictures are too small to consider the technical problems, except that the framing and/or cropping is bad for all of them.
As for the IP reason: You will need a property release to be able to post pictures here. I suppose that the pictures your referring to have been submitted with a property release.
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