Super Mario Cave World

I must say I am impressed by your overworld. However is does have a few places where cutoff is prevalent (mostly on the underground submap where the brown on pink edge pieces cutoff). The underground submap also seems to be reminiscent of the original submap; try to change it a bit more.

I am offering ways you can improve it.

I like those; simple, but definitely well-designed! I just don't get why the normal path from the volcano level seems to take to the castle, but its secret way takes to two levels and then to the castle, so it's a longer path. Maybe I'm just unaware of some sort of bonus though, but if the path that takes to the castle directly is actually a secret shortcut, then I reccomend hiding it.

As for the cave one: why are all level tiles revealed? Also while it kind of looks like the original submap, I don't think it's really much of a big issue. Those edges in the bottom cause cutoff but they're pretty minor too.

Nice job!