Well, I love this picture. It's very well done and Sweeney Todd is my favourite character of my favourite story. However, being such a huge Sweeney Todd fan, I've done an awful lot of research on the subject, and I'd like to point out a small flaw in your information. While it is true that Sweeney Todd has appeared in a movie entitled Sweeney Todd: The Demon Barber of Fleet Street, it was not his first appearance. The first appearance of the character Sweeney Todd was in a penny dreadful entitled 'The String of Pearls: A Romance' that was published in magazines from 1846-1847. It was written by several different authors, so no knows exactly who wrote it, although there are a couple of theories as to who some of them might have been. It's a great story, I've got both the book and the graphic novel version, I recommend looking it up. Since then, the character has appeared in quite a few movies entitled Sweeney Todd: The Demon Barber of Fleet Street, the most notable of which is the 2007 musical movie direct by Tim Burton, although by this point the story had greatly changed from that original penny dreadful. The story that most know to be the story of Sweeney Todd was originally a stage play by Christopher Bond that was adapted into a musical by Stephen Sondheim. The character you've drawn here is from Tim Burton's adaptation of Sweeney Todd, but Sweeney Todd has had various interpretations of his appearance. And now I'm going to cut this short since It's rather long and I'm feeling a bit like Dr. Sheldon Cooper. I just wanted to point that out.