snow queen's castle

To start, I just want to say that I usually don't do critiques, because I don't want them to be badly received. But, I saw a couple of things on your illustration that could be better. What I am going to say is not 100% correct, it is what I think thast would work better.

I like the idea, the 3 planes (foreground, mid-ground and background) works really well. It is really interesting. Here is what I have to say though:

The values are not exactly consistent. There is a light background (except the sky, which is right) but the left mountain is dark. There is the bridge which is light in FRONT of the dark mountain and then the foreground is dark too. A better grouping would have been having the mountain lighter than the closer part of the bridge. Also, the bridge should vary in value from the back to the front since it is really long. The castle is also somewhat hard to distinguish from the mountain since their values are quite close.

There is too much details in the back mountains. Since the focus is the castle, the mountains are taking this focus away. As a start, you could have made the shadow part with no details at all. Also, since it is night, you could have darkened the mountains on the top or, lighting them to the bottom. Even then, the whole mountains could have a lot less details. The castle also has more details than the dark mountain on the left. If you wanted to darken the mountain to close the composition, a good way would have been to move this mountain to the left so that the contour would be subtle and it would remove the empty space to the left which would really close the composition. Also, even if the mountain would stay dark, it would not be that much of a problem since the right part is logically in shadow (the light is coming from the left)

The castle could be a little be rotated to the right so that you wouldn't have a flat plane (rotating it to the left would push the viewer sight outside the image, which is bad). Making something seen from the front like this makes it less natural. As an example, if you are walking in the woods and suddenly you see a building or something at distance, chances are low that you will see it directly from the front. It would also allow you to use shadow so that it would make the castle more convincing (I am not saying that it is not convincing though).

This one is hard to notice but, the left of the head of the character is touching a line of the mountain (the part which separate the light from the shadow) so it form a tangent. This is really bad to do, I do it often too but I should never do it. It is the type of thing which once seen, it can't be unseen. So just moving the character a little bit to the right (or moving the mountain to the left) would correct that. Also the top of the mountain form a line that point to the character head. It would be interesting in the case that the character is the focus, but this time, the castle is the focus, so, I would change the direction of that line. The head is also almost centered on the peak of the mountain, that does not look natural (I did this also on an older illustration, don't worry!). As a good example, the character head is not at the same level than the top of the left mountain, which is good! Also, if this mountain would have been moved to the right, it would have created a mass symmetry with the character since they would have been at the same place in the left and right part of the image.

This one is really picky but, since you character has red clothes, putting redish lights in some of the castle windows would make a kind of "color reminder" that would help unifying the composition.

I hope that you find this fair. I would not have made a critique if I found your artwork bad. I feel that the quality is there!

Thank you for reading!