keith richards is a really good guess...bracelet, rings, (what appears to be) a sleeveless shirt, and how his fingers look slightly worn in. that being said, here, he seems to be playing a hendrix-style bar chord (thumb depressing the sixth string instead of barred finger). keith richards usually plays in open tunings, meaning that that much effort is not usually needed. however, that being said, i still would be leaning towards richards.
srv is a good guess too.