The challenge -- physical description as a key to character

[Jano Bronx]

An emaciated but powerful face looked down from high on the city. The gray aimless dark eyes stared through the streets. The skin did not get stuck to his bones, as if it has only imposed. Long dead hair was pulled tightly into a braid, the skin around his hairline appeared to be torn off. He radiated from malice.
The black smoke-like cloak fluttered around him. Thin, long fingers with sharp nails came from underneath the cloak. The skin on his hands was so thin that you almost saw the black blood flow. This was the most evil one, not a helper but it was just and everyone knew it ...
The mouth opened, a demonic voice escaped.
"The boy!" He spoke with a sort of accent, I could not place it, but I was pretty sure it was not of this world.

 

[slack]

I knew someday it would catch up to him, though, and it wouldn't be pretty. Hell, it wasn't pretty now. It wasn't a big secret that Mick Spassky was on his way out. The way he rolled off the couch onto his feet, how he got red-faced and pained just walking the steps to his apartment; he looked like a bloated fish. There was going to be that night he'd get juiced and do too much blow in some place no one cared about and that'd be it. He'd rot there while everyone else scattered like roaches in the light.