This is a really neat game you've made. The puzzles were great and I like the simplistic art style and the mechanics of using the torches as not only a light source, but a weapon and puzzle elements. The last level was really challenging and I died many times but I managed to get through it with some determination!
Perhaps the last level was a little too difficult, but only due to how little health you have and not knowing how much you have left. I don't necessarily think it's a bad idea not to have any health indicators, but I did find myself looking for something to show me how much health I had left. Even some small visual change to the lil' guy's outfit or something could work.
I also noticed that you can't really see what's coming up to you when you move downwards/upwards. Like on the last level I got killed a few times by the spikes because I didn't see them until last second because of how the camera catches up to the player only when they've stopped moving + the low visibility with the vignette-type effect around the screen. It's not really an issue, just something I noticed.
This is a solid submission though. Great work :D