To clear up any confusion, let me say this:
I never actually said this yellowbelly goes around slaughtering other yellowbellies nor did I ever say the blood in the image was from a yellowbelly. I don't really know where it's from; probably a small sharptooth. I had imagined the yellowbellies could use their bellies to defend themselves from sharpteeth, if the sharptooth was small enough that is. The blood was added in to make the yellowbelly look more menacing and to illustrate this "lethal belly" concept.
The image of the yellowbelly about to break another yellowbelly's neck was to show contrast and to show how much he hates the Berry Valley yellowbellies. It was not illustrating what he actually does. While he hates them, I never said he makes a hobby of killing the other yellowbellies. The only things I confirmed for certain was that he hates the Berry Valley yellowbellies and that he was pretty nasty towards anyone, but this is just his personality, not an indication of murderous intentions.
