I made this for Seraphine of Mass Stellar in Nano Banana Pro. Seedream is great too. I use it for every character now.
PROMPT
16:9 model sheet showing 24 headshots of the same character arranged in 3 rows and 8 columns.
Row one: front view expressions (neutral, happy, sad, angry, sleepy, annoyed, bored, scared).
Row two: three-quarter 45-degree view of the same expressions.
Row three: full side profile view of the same expressions.
Identical lighting, framing, scale, and character identity across all frames.
Photographed realism, no text, no illustration, no CGI.