Interesting puzzle that used the theme and subtheme very well. I liked the music and sound effects as they completed the game greatly. The artwork is also very lovely and cozy. Maybe it would be interesting to have the game be a sort of memory exercise in reflection. You could set it so that the player has specific triggers to view how the "sculpture" looks like. Example:
- level starts where the player is presented with the sculpture. They analyse it and click to start sculpting
- they have 3 additional "views" to the final structure during build
- once they think its ready you could add an additional trigger button that could be used to "compare" or "grade" the sculpture the player built
Another approach is maybe to have the play area be already full of snow and then the player just removes those that are extra at least for more populated scenarios.
Wanted to provide some next steps in case you want to continue building this :) . Congrats on building your game and Wishing you a cozy winter as well!