I love a bottom and submissive Snape who loves to be dominated by Harry, and Harry who is adoring and would basically do whatever Severus wants. Great dynamic between them and some wonderful, brilliant moments here. When there were signups for this fest, I totally wished Emily Waters would sign up for the fest and write a slave!snape fic. Wow, wishes do come true!! :-)
As for the art, it's wonderful!! That profile, that is totally how I picture Severus, with that hooked but elegant nose, and large, but elegant and delicate features all at once. Wonderful treat.