Some concepts for some character ideas I've had for a while; although I personally have never had that much of a thing for nuns (having never been catholic), I still get some of it through general cultural osmosis. I like the how the mask/habit/apron thing works as all one piece, and obviously with me being me they need to be gloved. 

I have been fleshing out this setting with fairly regular concepts of greater detail for each department (including some individual members of the order), and definitely plan to make some more art with the Sisters in the future (I'm thinking of doing something where subscribers can submit characters to be victims of the sisters, but we'll see); but if any of you like them in the mean time, feel free to use them in art and stories of your own.