Based on the pics in post #25, it looks off. You can see Heath in there for sure, you got the nose, eyes, mouth and scars down....the forehead still appears to bulge outward past his brow too much. The eyes look to close together, and if you look at the center of the piece and veer outwards it looks like the side feature of his face sort of drop off. I think the face needs to be more full on the sides.
Now that last picture you posted looks like a completely different sculpt, it looks great!