The mechanics are beautiful and quite clever, I love how different enemies interact with the field and puzzle, from the moving planting terrain to the spider leaving a tray of webs preventing jumps from tiles. Also loved the consequential puzzle you have to make your way trough to reach the boss on the boss level.
The only suggestion I have for this or future games is maybe to evaluate the possibility of making some levels with bigger of differently shaped puzzle maps: I think some mechanics, like the fish, for example, could really exploit theme and while the current 5 by 5 game field, combined with all the different types of tiles and enemies allows for almost infinite unique scenarios and puzzles, sometimes it could give the impression of being a bit repetitive.
The graphics are beautiful, with somewhat cute sprites and nice classic dungeon-crawler tiles, with the amazing slightly animated backgrounds: nobody could not love them and they really fit well with the concept of the game.
Finally, the music is magnificent. Soundtracks and ambience noises are very pleasing and immersive, with appropriate sonority and sounds for each biome and somewhat of a Final Fantasy vibe.