Not a bad gameplay loop here! It's a bit confusing learning the game while a ton of dialogue plays out right in the middle of it, but once I got the hang of how everything worked it was intuitive. My biggest critique is just that it's a bit overly easy, the endless stream of fire never seemed to out-damage my ability to just sit the cloud on top of a single flower with a semi-automatic. That single flower was able to stop the entire enemy advance by itself.
The rest of the game is simple but functional, art and audio are all about on par with one another. Everything may be simple, but it all reads, it's clear what each thing does.
Overall not bad! I can easily imagine further development making it into a solid bloons-style web game