Searching to learn more about Technical Issues

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

Also you will need a property release from most boat owners and some recognisable beachfront property owners, if you manage to fix the tech issues. 

Hi @Renata5C98 ,

Welcome to the Adobe community. All your images are underexposed. They also have blue color fringing around the edges. The dark ares are too dark hence loosing details, and there is a a white balance issue. They are too cool.

The composition of the 3rd photo is not good.

It would appear you over sharpen the first image. In so doing you have introduced artifact, and halo around the edges of elements.

The first image also display damaged pixels. To inspect you images for issue, please zoom to between 100 and 200%. 

https://helpx.adobe.com/support/stock-contributor.html will give you an overview of what is reqired. 

Best wishes

JG