Dungeon geomorphs

As linked by Scott at Huge Ruined Pile, these hand drawn dungeon geomorphs by dysonlogos are inspiring. Dysonlogos says:

[...] my challenge to myself for the next three months is to draw up a 100′ x 100′ dungeon geomorph every day, six per week, and then compile that week’s geomorphs into a single page PDF release every Friday as my Friday Map.

I may have to try my hand at making some geomorphs.