It's the Undertaker picture of Yana Toboso's blog (The best Undertaker picture ever ♥ ;; ).
I drew the same picture again with pencils (took 4 1/2 hours).
I actually want to draw more Undertaker (with my own ideas) but he's really hard to draw (..with his beautiful eyes). T___T
Kuroshitsuji (Black Butler) (c) Yana Toboso