My time with the game was sadly very brief, as the camera controls using a mouse felt very alien and disorienting to me. I can only assume this was to add to the experimental feel and ambience of the game (which I otherwise felt it nailed), though in my opinion it only took away from the ease of playing the game. I enjoyed my few moments with the game and, should the option be added to invert both camera control axes, I'd definitely give it another whirl.
Two other small points of feedback: It'd be great if you could leave the controls menu by hitting escape, or some other hotkey, rather than having to find the back button. Secondly, I think it'd add a lot to the ease of playing the game if you could hold space after already having released it, in order to glide. This had be confused a bit early on.