Very cool looking level, and the world-switching mechanic is awesome.
The closed umbrella parkour part was tough to get through, especially in that first tight space where you have to aim at the crack in the wall. Could be cool to have a short tutorial zone to get the hang of that movement before diving in (and falling into that hole xD)
I think it's really impressive what you pulled off using the Roblox editor. Keep building with it!