This took a total of around 10 hours maybe, shorter time than I predicted. I just wish I had a scanner at Uni because although you can see some of the detail in this photograph, it doesn't do the work I put into it justice. Drawn for my friend's 21st.
Mostly HB with 6B for the shadows, using normal A4 and a torchette.
EDIT: better picture uploaded, I am also selling a print of this mega cheap, so let me know if you are interested! [link]