This is my first critique so please excuse some errors. Wow, very nice at getting a new spin on the Kuroshitsuji charachters! You can tell from looking at the costumes that it was somewhat thought out, and that even the colors from the original costume designs fit the charachters. You even remembered Ciels ring! The details are very nice, from the lace on the hats to the little skull on Sebastian. At a closer look the handle is made of bones! The picture has a dark yet playful air to it which Kuroshitsuji always is I am unsure of what more you could add to this picture. Maybe if you do another picture like this, try including more charachters like Claude and Alois!
How inspiring! Oh the sorid love story of the Lady Grell and his love for Captain Michaelis! I can imagine it now, "Come, my wild sea flower, for we shall rule the seas together!" "Oh, Sebas-chan!" *dream bubble breaks* Time to wake up Grell