Dungeon Crawling Spritesheet

A marching squares spritesheet of dungeon tiles — The tileset, at 32x32.

This is a small spritesheet I made for a dungeon crawling 3/4 overview game. I intend to expand on this and maybe change the color scheme up, and this more of a mockup, however I made a cute render of a scene from a game of Rogue (alas, not my playthrough) below.
It's in a Marching Squares format -- I left two parts of it to have the error questoin mark because I wasn't sure how to make the overlapping corner area's look good, if it all.

A small scene from rogue — A scene from rogue rendered in this tileset.