Nice enough, especially for a 15 minute quickie.
This is a 15 minute Inkscape map I did for a PbP game I'm running. It's the German's secret underground hangar hidden away in Alaska for a WWII pulp action game. The big thing in the middle is a crude attempt at a 'secret weapons' airship. Of course every secret base needs its own monorail too.
There are some clear problems with the map (like the semi-transparent air vents that lead nowhere), but it worked for a quick and dirty sketch.