It's a really cute game! I love the desolate ambiance, and I love the cave exploration. The controls are really well-polished, and the variety of environments is really cool - you put a lot of time into this!
My one question is what this has to do with the theme... I'm sure the game takes a lot of inspiration from Knytt (although I've never played it), but overall nothing about the game seemed cliche... unless you're banking on big open worlds, collectable items, and waypoints being video game cliches?