This game is really fun! Might I suggest that the different resources give different amounts? Like, there doesn't seem to be any benefit to clicking the ones near the top, because you're more likely to be caught off guard. It'd give more insentive if the higher ones give more!
Also, maybe having the bombs go over the houses? They go under, but still count as "clicking" them. If that's intentional, it might make it more clear that there's risk there too.
These are just ideas though, the game is great as it is!