That was fun! I really love hand-drawn characters and stuff like that, their designs were really cool. I enjoyed the different worlds to explore and the story was cool as well. The music was really good and fit the areas too.
Just one critique, but I felt like the enemy encounters could've been a little more diverse. The characters have such unique elements and powers, but most of the enemies can be defeated just by using the main magic attacks you have at level one. Perhaps it would've been more interesting if there were enemies with extra atk so you had to use the weakening spell, or enemies that shot poison so you had to use the roots attack. (or maybe there were enemies that shot poison, but they all died before they could attack for me)
Overall it was a fun game, and I enjoyed it! I really like this world and I hope you keep expanding it!