I honestly though the Tetris aspect of serving random buildings so that the player never knows what's coming up works in service of the theme a lot more than mere obfuscation of the scoring criteria. In a game like this, keeping the scoring criteria obscured frustrates strategic play -- this is unfortunate, since I think you have a cool strategy game here -- but this is just my own judgement. Perhaps it is too early in the morning, and I just haven't had my coffee yet.
In any case, you have done some excellent work on the aesthetics of your game -- I love the blocky simplicity of the models, and it the placing of builds feels good.
Overall, great work! Keep it up!