I'll play spot the differences.
I read someone elses critique and I needed a few days to forget what it said, so I could call it as I see it. I used Kings pics as a reference.
Firstly, the sculpt is a little hard to see and needs more head on lighting.
Hughs upper eyelid and eyebrow are closer together.
His left (our right) eyebrow leads fairly straight across. The sculpt looks like it is more arched. This may be the lighting.
The nostrils on the sculpt are in shadow, but it looks like you may be able to see into the nostrils of the sculpt. From head on, Hughs' nose cavities are level.
The top of the ears seem low, when comparing them to the photo of Hugh. On Hugh the tops are across from the mid eyebrow region, and the bottom of his lobes are even with the bottom of his nose. I'm talking about his left (our right) side. The right ear on the sculpt looks almost correct.
The jaw line curves in even with the top of the upper lip. On the sculpt his jaw curves in around the bottom of his lip.
The creases from the nostrils to the mouth look more triangular shaped than what it does on the sculpt.
His chin is in shadow, but it looks like Hughs' is as wide as his mouth.
Hughs' mouth looks like it slants upward, ever so slightly, from his right to his left.
The neck looks to be the correct width.
The creases between the eyes look correct.
Hope I have helped. One question. Is it better for you to get our ideas as you go along, or do you think it works better for you to show, what you may consider to be practically finished, then ask for critcism?