I loved the art and animations, its so awesome how water cells have waves! I think u did all nicely done with color palette, dont worry about this, u chose 3 colors and used their accents/shades. With all this gameplay feels nice, but maybe you should add somewhere in hud current "power" or steps that player has. I met two small bugs: the first one is when the fire audio stop playing, the second one is when the tree planted on separated cell (on the screen).
You did a great job, really nice artworks and gameplay <3