Then he misfiled it, and it doesn't belong under the Traditional Art/Drawings category. I do digital art myself, so I've been in the new millennium for quite some time. I suspected that it was digital looking at it, but had high hopes that if he was filing it under traditional art, then there was some way to get that same look traditionally. It's probably a pencil sketch scanned in and digitally colored.
It's probably a pencil sketch scanned in and digitally colored.