I tried to make a number of different sci-fi style bases for the Isorians, using pretty much any material you can think of. In this case, it was some leftover MDF bits from a wild west terrain piece!
Yes indeed, it was an extra wooden shutter, which also seemed to be a nice vent or something along those lines.
To add an extra touch, I used a sawed off bit of sprue and a few "coins" chopped away from thin polystyrene tubes. I have a number of sci-fi basing articles on the blog, and I even have a number of basing videos that are helpful!
This is a preview video (one of 12 basing videos that were part of the Painting Pyramid series. You can tell that I have a bit of an obsession with basing!!!