RC played with the system a bit. Here's what came out of it.
The man is still rougly human in shape, with a head, body, arms and legs. His entire body is covered in overlapping bone plates, like a pangolin, and the visible flesh beneath it is gray and rubbery. The head might have human features, but they are buried beneath a mass of wildly flailing fleshy flagella and a flower like bloom of 8 inch bone spikes that cover the entire front of the creature's head. Venom drips from the spikes. A puffy pinkish organ that resembles a lung has sprouted out on the back of its head, through ragged brown hair still covers most of it.
Its neck far thicker than normal, the bone plates on it are heavier and larger, bound together with exposed muscle. A snapping turtle head, cycopic with one large cat eye and one central dog's ear, peaks out of under a bone plate at about the level of the adam's apple in a normal human. From betweel the spaces of the rest of the plates sprout cancerous flagella which ooze carcinogens and have a bulb at their tip that resembles a featureless human face.
His chest is remarkably normal, save for the pinkish lung organ growing under the skin between his sholderblades. It has swollen to such a size that the skin is stretched thin and translucent. Similar organs have grown on his shoulders like fleshy pauldrons. His otherwise normal human arms end in huge scything claws that drip with venom. His legs, besides the rubbery gray flesh and bone plates, are completely normal.
He floats several feet above the ground.