Bruce Weigel- one of the Gods of Wargaming.
Glad you like the terrain. It's easy enough for anyone to do; it required 0 skill, almost no time, and very little money. This style might even catch on, once people realize how easy it is to achieve this effect, plus the amount of detail you can draw into the plexiglass map (modifiers for terrain, fordability of streams, quality of bridges, etc, etc).