Make the silhouette recognizable
A sticker with a clear outline will read better on different backgrounds. Avoid tiny props or thin shapes that disappear in chat apps.
Use fewer details than you think
Large eyes, clear eyebrows, simple mouth shapes, and one gesture often communicate more than a detailed illustration with many small elements.
Keep captions optional
The face should communicate the mood by itself. Captions should reinforce the emotion rather than carry the entire meaning.
