alright so keeping to the reference, so far the nose is much better modeled and pixelled but... it's a bit too big for the face. You can either resize the nose or the whole head, heh, whichever breaks your heart less. The nose is too close to the mouth. The eyes need a bit more sculpting (but not too much). The neck is invented, follow your reference there more.
You're coming a long way with this but you have to be braver still