Hey there! I feel like this game was meant to be a hybrid between an interactive story and a platformer but it didn't have much depth in either direction. The story was quite corny I feel like it would be better if you turned it into a comedy and made fun of yourselves, the characters, and the cheesyness. It also gave several dialog options but I bet the game doesn't have any branches it pretty much doesn't matter stuff happens the same way.
As for the platforming you only had one sequence of platforms and that was it... I mean... Maybe the stars could give you speed/height boosts? Maybe add some traps, enemies, and items? Maybe make it a race where you have to compete to see who gets to the stars first?
Anyway please don't feel discouraged and keep trying, I hope my suggestions help improve any future games you guys do.