That's what I thought as well. Especially about the artist part, seems like someone who might give themselves another name.Looks very interesting, the mole and especially the part about being an artist! imo.
http://www.doenetwork.org/cases/4869dmbc.html
The book with the name Lyle Stevick was released in 1987, and he went missing in 1991. I'm wondering if the book was popular at all.
I also think the outline of the jaw/chin fits well. I'll wait for a bit more feedback then submit if others also think it could be a match! Thanks for your input.