HOT DAMN! Those are cool! My jaw dropped to the floor when I saw those pics. Jazz is not what I was expecting, based on the black & white images we've seen before, but he's still very cool.
As for Oilslick, he's stylized, like Lockdown, so I could see him not appealing to everyone, but I think he's freakin'...well, awesome, amazing, whatever positive word you wanna use. He just blows my mind, in both modes. He looks like a space-cycle, like something you'd see Lobo riding.