Looks great Ishi. I love the fog and the house silhouette. I've been trying to practice environments also and drew a little desert scene with huge green beans jutting out of the ground.
Cheers! I like the atmosphere in your scene. The shading on the mountain feels a bit weird though - looks like a bevelled flat object because of the solid shading strips on each side. I think a solid colour would work better, let the brain fill in the mountain shape instead of trying to suggest it.
A bit of fantasy-strength moonlight. The face is a bit of a cop-out.