I love the theme and concept of elementals! I agree with some comments that some of the puzzles were a bit too challenging for me (novice puzzler here), so maybe a hint system or clearer link between which buttons corresponded to which doors would have been helpful (I did feel bad for having to skip levels I was stuck on). The menu with the skip and resetting was a little hard to find at first so an indicator would also be great! I found myself trapped between two rocks and thought "surely there's a way to reset the level" so clicked around until I found it. The bed is a nice nod to the wildcard zzz by the way! The water and fire systems in the game are such cool features, I wish more was done with the fire as it did feel "water bucket spammy" at some points, and pyromania is just. fun lol.
Otherwise, great game! And I love the art too, especially the flames and bg sprites!