One of the things I love about Games Workshop and White Dwarf are the pictures of the incredible models. I could never paint anything like these though I love painting models.
This is Z'vnd'sh, a Pit Fiend and minor Pit Lord. In my game he is a fairly big boss. He holds court somewhere in a side cavern near the Vault of the Drow and works in league with a cabal of drow sorcerors.