Art style and audio were great! Found the game a little frustrating, as some of it didn't make sense to me.
Frustration for me came from:
- Merging was only in one direction, not both
- Felt a little pointless due to not really much of a goal and the game ending too quickly (I know you probably didn't have time to add higher tier buildings but that would've been nice)
But other than my minor criticisms, I thought that aesthetically this game was one of the best on here, great job!