This...Is a really good photo. The cosplays look good, all of the details are in place, my /only/ complaint is that you might of added a bit more of character-esque expression to the shot but to be truthful, it might of ruined the sort of serene moment you two have going on. I also really like your (The Sebastian's) eyelashes.
... That came out so oddly. Points to Rouse for not looking moe and cutesy though, because Ciel Phantomhive just does not do self-conscious cuteness.