Hi! You wanted constructive feedback, you're going to get some :D
First off the tutorial tutorial was really well made, explaining thing as you go, instead of resorting to a wal of text, like many jam games do these days. Another thing I liked was the concept. Going faster in one direction is really fun, and when you perfectly land a jump and turn around it's really satisfying. The ship level was really creative too.
Not sure whether you drew the art yourself, in the description I could only find links for the barrel and window. To be clear, I think the art looks good, but would benefit from a stylistic overhaul. By this I mean some textures had outlines, others didn't. Some had very high detail, others weren't even shaded etc. If the style stayed consistent throughout all object it would have been a lot more pleasing to the eye.
The controls were probably the biggest problem for me. They just felt unresponsive and I wasn't able to finish the game. They lacked of basic QOL stuff like cayote time and jump buffering. For more info on the topic I highly reccomend this video: