The tower itself was both enormous and quite costly, but the mid-section parts were comparatively cheap. I ordered two sets of the mid-section and started making a fortress. I assembled one of the sections, which made four walls. I added a roof to make a box.
Because I wanted battlements for the fortress, I cut part off the other section and used it to made a wall around the top of the box. I then bulked this out with plasticard and added some ornamental spikes which I found in the local art shop. It looked like this:
Then it was time for painting. Using dark grey mixed with bone, and quite a few green and brown washes, I ended up with this:
I also had a small outhouse left over from the very old Empire fortified mansion set. I painted it up as a little guardhouse. I didn't glue it to the top, but I think it sits nicely up there. It gives the fortress a bit more colour and ties it into my other buildings.
One thing bothers me - the door (it's from the Mantic doors set) is barred across the outside. However, that's to keep the terrible evil locked inside, not because I cocked it up. So that's fine.