I do not envy the sculptors who have had to tackle this likeness, I get the impression he is a tough one to nail 100%. Arnie Kim has somehow supernaturally tapped into something very special with his 1/6 sculpts for Enterbay, I'm still baffled by how lifelike those look.
The odd thing is, I was told by George Sohn (owner of Toynami/Cinemaquette) a while back that Arnie Kim would be sculpting the Bruce Lee Cinemaquette. If Arnie did indeed do the honors here, it appears something got lost a little in the transition to the larger scale. The paint and hair styling could also be playing tricks on us... I can see a very good Bruce sculpt in there, it's just not shining through.