Rejected pictures, asking for advices

Your first photo needs the names on the boats removed. The photo could be better cropped. You have artifacts around the tree branches.

Hello,

Apart from the technical aspects, etc, what is the commercial value of these shots? Don't say for holiday magazines! Adobe stock has better examples!

Have a look at the Adobe Stock tutorials:
https://helpx.adobe.com/stock/contributor/tutorials.html

To advise you specifically, please tell us the reasons for the rejection. For the first photo it is certainly ip violation. The names and logos on the boats must be retouched. The second picture is blurred.

Adobe told you why. For example, "technical reasons", "artefects", "missing model release". What did they say for each picture? #1 and #3 have IP violations, #3 needs a model release, but there may be other issues. They only report the first one they find.