Very fun game! It has incredible polish with visuals and sound design. The art and character designs look so good and I love the cute sounds they make.
The gameplay is also very well handled. I like that you yourself can also attack instead of purely relying on your flower dudes. The only thing that could use some tweaks in my opinion would be the difficulty curve, as almost every new stage felt almost unbeatable the first time around and manageable after upgrading and going back in. Also, I think long ranged mushroom dudes are way to powerful and just melt through your health and stronger units before they even get close enough, if there's 4 or more in one place. The ranged flower could probably use some logic to back away while shooting if the enemy gets too close, because they just end up feeling like weaker basic flower dudes.
It's an incredible game with lots of potential, it just needs some tweaks. Great work!