1. I personally would like to see Asterion keep a faded scar (small gap/indent) on his left eyebrow and the left side of his lip, but this may be impossible due to the angle of the sprite's pose. For further effect, maybe keep half of his left ear missing/scarred.
2. Sleeveless Asterion needs more accessories. A bicep band, clasp on the shoulder strap and a soul patch? Or maybe even fur-less bicep, shoulder, and chest?