Who is the guy on the left in this collage poster? And which anime is he from? I saw this guy on a poster with Beyond the Grave and Trigun's main protagonist. But I can't find who he is, nor whether he has his own anime.

The guy is on the left, wielding two crimson swords, with gray hair.
He is Juji Kabane from Gungrave: Overdose - That's the second game, not actually an anime.
The weapons are actually Gunblades, if you look at the hilts of the swords in your image you can kinda see the guns.