Assuming you caught my edit regarding Dungeon 3...
Dungeon 4 felt about right, honestly. The extra bondage moves from normal enemies helped sell the theme in a way that wasn't there when I first played. It'd have been slightly nicer if there was an item that increased Mummification at the end, to help earn the title (four pairs of scissors was honestly overkill, given how what all you still need by that point is titles), but it wasn't that much of a grind. The cursed slave collar was a cute addition, but would've been nicer with an associated dialogue line.