Reference frame, scene 4. Vertical 9:16. Pixar-style realistic 3D,
biology classroom, daylight, film grain. Composition: close-up of
Alisa_master holding up the TongueCleaner_master, pointing at the
U-shaped head with the blue silicone ridges, braces, confident expert
face, mouth in frame, REVYLINE branding readable; class leaning in.
Camera: medium close-up. Key visibility: REVYLINE branding + U-shaped
head sharp, expert delivery readable, mouth in frame. Negative: no
on-screen text, no logos other than Revyline, no flat cartoon, no
anime, no obscured product.
