That's certainly something I want to do. I've been trying to add little pockets and dead ends in the world, but there are still other things to do like adding walls that can be broken only with orca flip/meteor dive/etc. I've kinda told myself I need to add the final boss fight to sorta close out the game before I add more world stuff though.
Anyway, I'm glad you like it! Vapor Trails was heavily inspired by Hollow Knight, after I got very impatient with his slow walking speed.