I don't typically like games like this, but I could get into this one. Having to place towers strategically while also trying to manage resources and plant flowers was actually really fun. It's an interesting genre combination that works really well!
A tutorial I think would be a great addition. It took a bit to figure out what to do, but I did get it figured out.
I think if you were to keep building upon this and keep it going, it would be phenomenal! I already enjoy it, and it could only get better from here. The fact that you learned about the jam just before it started and learned a new engine just to export this to web is impressive! Keep it going guys! Extremely well done!