You know its good
When there are more body parts in the air than there are in a human. Very bloody and gory, with a lot of finesse and a touch of lunatic passion. Loved the choice of colours and characters, and the detail on the severed hands, if only the whole picture was so detailed, I'd give it a ten.
But that's just me moaning, you might have done that on purpose in order not to distract the viewer from the protagonist and the mayhem.
More protruding bones! Disembowelment! A beating heart in someone's fist! A head pulled off the body with the spine still attached to it! Just some ideas...