I'll do my best to not sound harsh, I will also assume you are relatively new to game designing (if you are, just having create this game is an accomplishment!) but I have to be objective when rating this game.
The game-mechanics are pressing buttons on top of towers to gain points of that color, the first one is automatic the rest requires the previous tower's resource. Those mechanics are very simple and to me they don't create a fun game play, there's nothing to immerse myself into, nor does there seem to be any meaningful reason to get to the last color because I can't use the resources for anything other than to gain more resources. If you could actually use the resources on some other game-mechancis I think the game could be more fun and meaningful.