I would apply snow more evenly over the hut on the whole…
If that end of the hut where the snow is piled on top is a chimney, there may be some heat interaction with the snow to consider (melting, icicles, etc.).
Also, where the doorway swings open (does it swing outward or inward? Most doors of habitable dwellings swing outward, I believe), there should be some signs- marks in the snow- of where the snow gets affected by the door’s movement. Furthermore, usually people stop in the doorway to get out keys, open it, close it, etc., so more footsteps and trampling in the doorway would add realism (people usually don’t just walk straight in and out of doors, they have to stop, turn around, and close/open door).
You may want to flatten out a bit more snow surrounding the hut.
Good work so far… cheers!