Nice game.
I like your way of using the theme. A very neat idea that I'd like to see explored more. Unfortunately, I had no idea how to defeat the first purple enemy. There was no feedback as to whether I was hitting them, and the cooldowns for both attacking and jumping seem extremely long.
I enjoyed your choice of music and graphics. It was very pretty.
I think the player could have used either a bit more aerial control for more precision or a wider field of view (like Super Meat Boy)
Your update notes look like they address a lot of the big things, so I'd love to see how it plays after that.
Nice work!