Hi and welcome great subject and well captured. If I had ti pick a weakness it would be the bright white sky. I did try and change the background just to see what it looked like see attached I also put you image through Portrait Pro just to see if you can see ant difference's Thank you for sharing.. This was done on the quick more time better the detail..

Hello Sergej

Thank you for sharing this portrait with us. African portraits are frequently published here so it might be worth resubmitting yours. I like Daniel's edit with the dark background but I also wonder if a closer crop of just head and shoulders might be worth considering. The bright pink detracts a little from the girl's face and the white sleeve doesn't add to the appeal, so I think head and shoulders could work better.

Good light, Elizabeth 

Thanks to both. Yes, I see now that the background might be too bright and distracting. However, completely removing the background and replacing it with something else, might not look as natural anymore, it will feel like a studio setting, but the girl does not look like one, who would go to the studio. Will try to do, like Elizabeth said, with a more drastic cropping (and maybe some vignetting, to remove the brightness).

However, might it also be ok, if I tint the magenta color into something less distracting, like darker red?

Yes, Sergei, I think it's worth trying a more subdued colour than the magenta.

Elizabeth