Playing with geomorphs, part 1

So as I mentioned in my previous post, I've been messing around a bit with drawing maps lately. While the last post focused on something I made for my campaign, I also decided to play around with the idea of geomorphs. At some point I'd like to play a serious session which makes use of them so I might as well start tinkering. Here's sample #1. Some notes on it: the scale is 2 squares = 5' and I wasn't aiming for any specific size as much as wanting it to be square. Things I'd do differently / don't like about this: On a scale of 2 sq = 5', it's surprisingly easy to set yourself up for exterior walls which are N + 2.5' long. Like what happened here. I made this 20x20 squares large... which means each wall from the corner to the opening is (20-2) / 2 squares long... or 9 squares... or 22.5 feet long. That's just awkward. Next time I'll plan how wide I want the sides to be between the openings and plan accordingly. I tried for a t