Hi Krisztina,
The photo looks fun to me, always glad to see people who are genuinely enjoying themselves
As far as PP goes, the whites seems overly white to me, personal taste I know as many like this look. I think it is a fine line between whitening and over-whitening! I like the crop. I find myself wishing she was looking at the camera. I don't know if it's the light or the distance vs focal length that makes me think the nose is exaggerated? The file is a little too small for to me to make much conclusion on PP. Overall I think it's a cute pic.
Thanks for posting