An excellent game. Truly one of the most polished 2D platformers I've seen outside of industry products.
Simple but fluid controls. Level design hits a sweet spot of requiring good control, without being exhausting. Atmosphere really well set by the music and visuals. Cutscenes are incredibly clean. No artistic style conflicts at all. It's what I'd expect from the early 2000s professional games industry.
You've got something to really be proud of here!