Your horizon isn't level. You need to have a straight horizon. The colours are also wrong here. The sun reflecting off the water is also distracting. It has given a very white patch.
You have to improve your composition.
A czy to odbicie od słońca da się poprawić?
You can't improve the reflection in this photo. But you can improve the composition and colour balance.
Dziekuje. Czy adobe przyjmie w takich kolorach to zdjęcie?
Not sure. The quality is not good when you zoom in to 100%, so I doubt it will pass Adobe's standards. The camera probably isn't so good for Stock photos. Especially by today's standards.
Have a read of this from Adobe about how to create better photos:
There is a Polish version you can read. Just have Abobe set to Polish - which you probably already have.