Hallo Witold. As I said, we need some photos from this subject....not many here. ery good this one, not only because of the subject but also as a colour composition. Blue and yellow have high contrast between them. This is for my taste the A and Z of a good photo, this help the main 'object' to be different from the background. You did it very nicely. Very good also quality and clarity, somehow, the water and the glass does not hard your shot with reflections, spots etc. Very good. Great tight cropping.