Cool little demo! I loved the design and animation of the main character. The idea of a construction plan has a lot of potential, but I think it could make for even better visual storytelling if it actually looked like it represented some kind of real place. It felt like you didn't get a whole lot of control while mid-air, making it pretty hard to land on some of the smaller platforms. I also think it'd be nice if the checkpoints also healed you and/or gave you some other indication of actually saving progress. Regardless, well done finishing your first project!