They are perfect I was looking for something like this.
50+ Hand Drawn Isometric Dungeon Assets
A downloadable asset pack
This is a collection of assets for use in anything such as map design or game design. Originally designed for creating maps for Dungeons and Dragons. Over 50 assets.
All these assets are under CC0
Feel free to attribute these as created by Mark Gosbell if you want to.
Screenshots made in dungeon scrawl by probabletrain