Choosing photos that work
Good photos make the generated scene easier to read. Privacy-safe photos also make testing easier on shared devices.
Start with one face or one object
A centered subject with strong contrast is easier to evaluate than a busy group scene or a dim background.
Try expressions in batches
Save neutral, surprised, wide-mouth, and side-angle portraits so you can compare how different minigames use the same person.
Keep a clean test set
Use a small album of approved images instead of scrolling through your whole library during play.