This was a very stylish game with great visuals. I like the idea of switching between 3D and 2D perspectives, though to be honest I'm not really sure what the benefit is of switching to 2D here. In other perspective-switching games like Super Paper Mario, switching to 2D would "hide" the elements that were in 3D, so you'd be able to pass 3D obstacles by switching perspective. Here, it just felt like 3D levels but unable to move forward without switching to 2D and not seeing the obstacle. This meant switching constantly to 3D just to nudge my character a bit and then back again to actually progress. I also found that the pixel-by-pixel nudging my player character into the exact spot to be a bit finnicky, and would have preferred snappier controls that move my character one block-unit at a time, if that makes sense. But overall I thought this was a great game with an excellent atmosphere!
By the way, we played your game on our stream last night!