Miriam Cooper's 4 syllables (2 + 2) hit the Hollywood sweet spot.
Miriam's 2 beats vs. Cooper's 2 create a natural cinematic snap.
Miriam Cooper's softer consonants cost it screen presence.
Miriam Cooper misses the alliteration hook that makes names stick.
Miriam (6 letters) and Cooper (6) are balanced in length — clean on any poster or marquee.
Miriam Cooper has mostly familiar phonemes with a few tricky patterns.
Miriam Cooper has decent vowel richness, but stronger A and O sounds would lift it.