Co jest źle w tym zdjęciu?


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:
https://helpx.adobe.com/stock/how-to/tips-stock-image-acceptance.html?set=stock--fundamentals--adobe-stock-contributor
There is a Polish version you can read. Just have Abobe set to Polish - which you probably already have.
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