Overall, I think it needs a bit of polish. I started the game by putting houses in the center of town, because that looks the most aesthetically pleasing, only for that to lead to my demise as a snowman huddled on the far end of the road away from my factories and since I can't replace the house, the snowman was unmeltable. I like how it goes from an idle game to a tower defense. Cool!
For theme, I think it absolutely fits. The game takes place in a tiny town, and the gameplay is also centered around the town. (also big ups for the snowman)
I can't say I had a super large amount of fun though, idle games in general just don't do it for me, though I was definitely excited when it turned into a tower defense. That said, the snowman became unstoppable when it just hugged my houses in the center of town.
For innovation, I liked the genre shift when you place a factory, but other than that it's essentially two skeletons of different genres. It doesn't really expand upon the idle or tower defense genre in any ways other than combining the two. That said, by combining the two, it was still really innovative.
I loved the graphics. It's a nice cozy tiny town.
The music was nice! I don't have much in the way of feedback for that.
Again, not much in the way of humor, though I don't see any way you could add that without it being out of place. I guess it is pretty funny that the snowmen have turned evil.
The mood doesn't stand out, but I like the coziness of the town.
Well done!