What a great bit of nostalgia Ian, I love this guy. I think ewe all have a love-hate relationship with the Reaper Bones line, but Mortar turned out well. Good catch on the wing re-positioning - I'll remember that for future Bones figures. The paint job really brings this figure to life (or semi-life, whatever the case with Gargoyles). I too use coins for basing single figures, they are often cheaper than the cost of a similarly sized washer. It's less of a legal issue in Canada now that the open was discontinued but it still doesn't feel right.
Numismatics issues aside (that's two visits to the OED today), it's a great post and I'll award points as a cavalry figure due to bulk.