New Member, With Map

[TheAnarchitect]

Greetings!

I've been lurking here about a year, scanning other people's work and reading tutorials. I'm a long-time GM who goes in for world building in a big way. I'm also an architectural draftsman, so I have some related professional skills. I've decided to become a forum participant because I'm working on a project and could use advice.

I am creating a map of a terraformed mars for use with the Numenera setting. I've done my homework on what that entails: I've figured the atmospheric pressure at various altitudes, temperature ranges over seasons, wind and water patterns, biome distribution, etc. I used the USGS mars map as my base to work from. I have a large number of hand-drawn maps with the data on it. What I'm trying to do is convert these maps to a clean digital format, suitable for publishing.

Where I'm getting stuck is representing biomes. I want something that will fit in with the "Heavy outline, colored fill" style I've got going, but is more visually representational than a colored blob labeled "Jungle." My photoshop abilities are pretty much limited to collage, but I'm absolutely willing to learn anything I need to in order to do this right. So I guess what I'm looking for is advice/tutorial suggestions for how to show my biomes, as well as general critique and advice on how to punch it up.

Attached is the scan of my hand-drawn map, and the current state of my Digital map.