The tattoos make me think it’s Sebastian Moran.

Everybody shut up! SHUT UP! Jim Moriarty’s on screen.

And now it’s time to stare at it for three hours before continuing.

Work in progress, Sherlock and Moriarty commission. Jim’s face was starting to blend into the paper, so I added a splash of color to make him pop.
Also a hint of Sherlock’s cheekbones…just the tip of the iceberg, that.