I'll write this review in English, because even if you are French, too, we are in a community where we must speak in this language ^^
So, this picture is very interresting for the vision of a world where man did not walk is very well transcribed. We think that this world is totally new and unknown, I like a lot. The magical side of this picture is really good show too. The whiteness and the appearance of soft snow marks the quiet that accompanies this pristine world. The title sums up very well in this picture. In the end I summarize this picture by the following description : A calm and peaceful world where serenity reigns, in a protective forest in which the scenery is lost.
For the technical side of the photo: I think that is very successful, apart from this slight overexposure on the ground, but with differences in this lights contrast I suppose it was difficult to achieve any balance. Maybe the editing on photoshop !
The tight framing reinforces this impression of protection.