You're not the only one who thought that. I was surprised to scroll down and see someone else with the same thought! I agree though, this is very well done.
This definitely looks like the kind of man you'd expect to be a Vampire Hunter. He has the sword and gun, (a flintlock no less) and he bears the cross around his neck, and the leather long-coat/jacket fingerless gloves combo just scream "I hunt those things that go bump in the night."