Hi Artur!
Did you intend people to process your image and post results?
If so you should put it in the Play Raw category and add a CC0 licence, otherwise forum etiquette kind of prevents people from doing stuff with your file. 
yes i did, thanks for help
I changed the category to Play Raw.
For providing a proper license, copy and paste this text to your post:
This file is licensed Creative Commons, By-Attribution, Share-Alike .
And feel free to upload your file directly to the forum:
Unfortunately, that file sharing service will not allow me to download the file without corrupting it in some way - I get a .tif file that’s the same size as the original but only thumbnail dimensions.
If you can upload to the forum that would be best!
EDIT… the file’s ok the service just renamed the extension to .tif! Weird… I wouldn’t use that service, given any option.
There’s already a new topic with this photo. I only saw it later myself.