This is a nice simple map of a small base on an airless, probably low-gravity, world (or indeed moon). There are two habitat modules each mounted on stilts and with a ramp from ground level to the entrance, and a further ramp leading down from a crater edge (or enscarpment) to the ground whereon they stand. Rather oddly, both have 'Habitat 01' over the door!
Use of shading gives a nice feeling of depth. although it would be nice to have an indication of vertical scale (i.e. height) on the cover picture - perhaps a standing astronaut? It looks as if the habitats are each about 3m off the ground, and the crater wall would then be some 15m high.
The top-down view is nice and clear, however you'll have to find some way of indicating people who have ducked under structures, as there's no way to accomodate this in miniatures use. Of course, this isn't a problem if you are just using this as a visual aid to show your players what their characters can see.
A nice little base, and remember - in space, nobody can hear you scream!