This is very beautiful work! I can see all of the effort put into each detail! I have always the darker atmosphere in snow scenes and this is a great example of a soft, calming scene. First of all, I love the colors you used in the background. The purples and sandy tans give is a very serene look which is very pleasing to the eyes. Also, I love how you shaded Raven there! Especially the eyes and mane there! Also there white framing is a great touch too.
Very beautiful job!