Great job! You said this was your first completed project, which is awesome! The first of many hopefully. I like how the player can choose what order to pick up the different curses in, so you can sort of modulate the difficulty by leaving the worst curses for last.
I think something that would add a lot to the game is a bit more feedback when you or an enemy takes damage. Even just flashing the characters white for a few frames would make a big difference I think, although you could go crazy with knockback, screenshake, etc.
Overall, great job though!