IIRC, that first picture is none other than...
that is funny. When I was looking for an avatar 7yrs ago for Stingtalk I saw the image and liked it. But I originally I thought it was space ghost NEVER READ COMICS AS A KID.
Also when I originally got the image it was on a background that obscured the horns. But since grabbing the image I have seen the X-men movies and I approve of the wolverine character, so I accept it as a suitable avatar.
BIIIIRRRRRDDDD-man!