First off, the wings. THE WINGS. Are amazing. They have in-character elements like crow feathers and they're like the wings of a dark angel. The hand grab is just amazing as well. It's like Sebastian is pulling Ciel out of darkness. (Which is pretty ironic considering Sebs is a demon.) The background suits the image as well. The detailing on the clothes is good, too. Ciel's open shirt is also a nice touch. The only thing that is slightly unappealing would be Sebastian's legs because they're kind of stiff.
Overall, excellent job. You have moved me greatly.
An amazing change of style from the usual fan drawings of Kuroshitsuji, the drawing itself makes you do a double-take when you realize who it depicts. the wings are done in a fluent style that could go so far to called edgy, you feel like you could touch them. the lines in the BG add flow and direct the eyes around the page wonderfully. I especially like the coloring for the shading in the clothes, and how warm and cool colors are placed together to give the picture a darker, deeper feeling. a BIG thumbs up to futago-kawaii. i look forward to future art works from you.