On my opinion, this new collab levels have some sort of amazing maps.
But My favourite in this pack is Gate Garden, this map have a bunch of new content: like score diamonds, new enemies with different nice behaviour, a bunch of paths for all characters and a bunch of secrets too... Sadly the token door doesn't work on this pack (neither with noclip cheat), creator did a nice LUA script to keep players out of this room and the emblem inside it unreachable. Congratz!