Nice game, very pretty.
I found it a bit unfriendly - is this drop down somewhere I can go or is it death? Also the blocks that reveal themselves in the light only as you jump towards a ledge, causing you to fall to your death when you've just taught me that my light is a source of protection seemed unfair. Perhaps I'm just impatient this morning and having to restart from the beginning each time bothered me?!
Well done, good work, sorry not to offer a more specific bit of praise!