who's that tromping over my bridge

A heavy, rusty, iron railroad bridge stands against a blue, mostly cloudless sky. Sticking up from it is a railroad signal. Walking across the bridge is a small light-colored goat. Hanging beneath the bridge, sitting on a swing, is a heavy, black, horned figure with glowing green eyes. A blurry green treeline is visible below, in the background. The painting is signed "Chris Silverman".