I've been refreshing Insanejournal all evening trying to leave a comment, and I've not been sorry at all to load this gorgeous piece of art again and again.
I can't tell you how amazed and pleased I am, 'Mystery' Artist. The technique is fabulous, and the character designs...just perfectly lovely in their unloveliness. I love the way this highlights both their similarities and their differences, and the pose is everything that makes me happy about this pairing. Snape, 'old' and pitiless in canon, here is young by contrast, in need of care—and Filch, usually 'useless' and cruel, here in the able role of caretaker.
I don't know if I can thank you enough, but I can't stop smiling every time I look at this picture.