Neat! The ambient music is very nice and the art is fantastic. I love the style choices you guys made and the little effect when completing the first level is cool.
If I may offer a suggestion - the camera being positioned such that you can't see the danger in some cases feels like it lead to a lot of 'cheap' deaths. At the start I couldn't see the spikes and couldn't see the platform I was jumping to which feels a little bad to fall into either a pit or where you're supposed to be going.
I'm not certain if it's intentional but pressing a left/right (a/d) direction and then W + Space at the same time shoots you up into the air which was a fun unexplained mechanic to play with.