I don't have any more Skinner pics right now... but I'll try to get some.
Because I haven't read the Spirits of Vengeance storyline in a while, his entire story sorta jumbles into one for me. Issue 3 of SOV (I think) contains his rebirth story. This is the main reason why I like this character. It's so very tragic and a great idea for a villian. Plus, he had the coolest weapon; his forarm bone which transformed into some brutal looking axe type bones. Awesome
As for physical threat, we'll he was no more of one than anything or anyone else. Ghost Rider is still near invincable, no matter who or what is attacking him. Skinner was an addition to Lilith's Lilin and thus strengthed her little family. This threatened not only Ghost Rider and the rest of the Midnight Son's but the world as a whole. Not so much physical pain but the pain of not existing in a world as we know it is what GR had to worry about.