Title from https://www.youtube.com/watch?v=f2Aco73B4L0

Outfit is by  Jxw
Art by  temils
Gun is the Dead Man's Tale from Destiny :P

Temils did an awesome job of Asmod on a hill, ready to plan a heist on a dieselpunk train. From reality to reality, the demon travels, immortal, ageless and so very tired. Sometimes they live in luxuary, but often they scrounge until the portal to the next life opens and they go stumbling through.