Henry Walthall's 4 syllables (2 + 2) hit the Hollywood sweet spot.
Henry's 2 beats vs. Walthall's 2 create a natural cinematic snap.
Henry Walthall's softer consonants cost it screen presence.
Henry Walthall misses the alliteration hook that makes names stick.
Henry (5 letters) and Walthall (8) have a slight length mismatch, but it reads fine on screen.
Henry Walthall has mostly familiar phonemes with a few tricky patterns.
Henry Walthall has decent vowel richness, but stronger A and O sounds would lift it.