Nice little game - especially since this is your first game jam,
The texturepacks / spritesheets you used looks great and fitting for the game. The chicken thingy was a fun little gimmick :D
I've played through the game and two things I had problem with:
- The controls. I can't eg. drink a potion and move at the same time and the movement itself was smooth and nice but felt a bit slow and this way, clunky.
- No meele attack and the mana regen is a bit slow. Also I didn't really understand what could I use the air / water spells. The casting speed is the same for all of them and only earth and fire did significant damage to the enemies so the other spells felt more like a placeholder.