it's hard to describe, I don't think it looks particularly awesome, but I kinda love it. I like Whalen's style in general though so that could be a factor.
I kind of take it as a joke itself, Tom Whalen doing a movie poster for an R rated, Sci Fi-Action movie. Terminator as if it existed in the world of Peanut's. Lil John Conner & his Robot friends.