Really interesting idea! The concept of 'balancing' the number of flowers of each color while trying to collect as many as possible adds a nice strategic element, which makes the game really fun. As for the visuals, I think you did a great job—the sprites and animations look awesome.
I would have loved to see more mechanics like the rat at the bottom, though I have to admit I got stuck down there (the jump didn’t give me enough height to get out, and I couldn’t find a way back).
That said, great job! You’ve created a really cool game ^^
P.S. If you made this with your own engine, congratulations! That must’ve been quite an accomplishment.