I decided to go ahead with this photo, though quite crowded in the background, because of the color composition.
We were in Zermatt, a famous ski station in Swiss, to take some shots and I tried a genre I am usually not familiar with.
Give me your comments about composition, editing, anything !
I understand that you can't always arrange the elements in a public setting as you would like. But I think you alluded to the problem of a busy background. It's not so much the other people but that they overlap with the young woman in the foreground. Try to separate your main subject from distractions, if you can. Maybe waiting a moment would have given enough time for the two men in orange to have moved slightly away, giving the woman her own space. So much of photography calls for patience to wait for a better composition.
From the angle of this shot, it's difficult to tell what she's holding in her hand. Presumably a phone, given that a cellphone never seems to be far away in today's culture, but whatever it is, it's too small and obscure to add anything to the story. And the photo needs, in my opinion, a greater purpose or story. As it is, I don't feel like it says much. If the person is a stranger, your options are limited. If you know the person, or have the nerve to ask if she would pose for a few pictures, then try moving your camera off eye-level. Raising or lowering it almost always creates a more distinctive image. Have her move her hands so the camera can see what she's looking at. I would also crop most of the sky above the Matterhorn. It seems to pull my eye away from the subject.
Lastly, the image appears over-exposed. The face is nicely exposed, but if you can darken the overall exposure and add a touch of fill flash, you'd get a better balanced picture. These are just my opinions. Feel free to disagree or ignore them. There are no absolute right or wrong answers in photography.