I think this is a great mini, the highlighting on the robe looks just right to me , I hate it when a supposedly black item gets highlight so much its clearly blue or grey . Also I love the metal , You did an excellent job of making it look shiny for the leg irons especially
That's because I wanted to keep the robes as black as possible. They're highlit by veeeery careful drybrushing in grey, which isn't really discernible on the scanner, as it blends in with the reflected light.
I'm not too keen on the silver masks meself, but I couldn't think of anything that looked better.
I like your colour-combi, the linen looks quite authentically. But I don't relly care for the silver masks, but that's just a taste thing. Unfortunately, one can't really see much highlighting on the backside of their robes, seems like the light is doing the job here. But I know how hard it is to highlight black, so...whatever.