Which photo gives the best Shaking Head result?
Updated:
Short answer
Choose one clear, bright picture of a single pet or adult looking into the lens, eyes open, head and upper chest included; the face fills the screen the entire time. Leave out two-animal shots, sunglasses, strong filters, toys and children. Files: JPG, PNG or WebP, 10 MB at most.

Good inputs
- A lone subject: one cat, dog, friend (with consent) or you.
- Eye contact: open eyes that are easy to find.
- Tight framing: head and upper chest. The body barely moves, so full-length shots add nothing.
- An uncluttered backdrop: it carries over unless you choose a new place.
Inputs that fail
- Plush toys and drawings, because only real adults and pets are accepted.
- Anyone under 18, babies included.
- Two subjects in one shot, famous faces, or a screenshot from another person's video.
- A head turned away, a mouth behind a paw, or eyes under sunglasses or a heavy filter.
Questions people ask
My pet is asleep in the photo. Will that do?
Maybe, but the model has to see the eyes, even slightly open. Pick a relaxed, awake shot if you can.
How much does the backdrop matter?
A lot, since it is kept as the default. Tidy walls and sofas suit it, and a cluttered room is better swapped for a preset.
Is there a size range?
Each side should land between 300 and 6000 pixels, with a 10 MB cap.
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