Biography
Everything created by The Concrete Thoughts of Felix Tengen is done through Ryan S. Welfle. The pumpkin-headed ghost is neither Ryan S. Welfle, or Felix Tengen, but is Ickybod Clay from Clayfighter. We're still unsure, but the image of Ickybod Clay is most likely the closest approximation of the way Felix Tengen views Ryan S. Welfle.
Biography text from Last.fm, available under CC BY-SA.