Nice puzzle platformer you made here! I especially like the elemental power you got there and build the last level with all power utilised, bring them all together. Good job on that. The art is also nice, reminds me of A boy and his blob. Not sure if that's what you are going for.
A bit nitpick that it feels not too good with the delays in the start of the jump and after landing. It seems like the games lost every momentum at that moment and that's not a good feel for that. Also, why the wooden plank isn't a one way platform? (Probably I am playing too much Mario and got too used to it)
Anyway, nice job!