This one id a bit light, but it is another concept for what an outpost in the Darkness might look like.

This is one of the earlier ideas of what a station in the Darkness might be like. The two tall towers would harness ambient energy, and that would keep the crystals charged, thus maintaining the fort aloft.

This idea of a blimp type air ships was the original ship for Captain Moirrey Eian Pherick. That was quickly abandoned due to the fact that it seamed out of place in his world.

The next choice was the tall cylinder type that was finally used in the book.

I found a few more things from Lookout Cortez, and I will try to get it up here before too long. I am having knee surgery later today, so it may be a while.