Make the face the hero
The expression should take up most of the sticker. Extra shadows, props, and tiny details can make a 3D emoji harder to read.
Use lighting for emotion
Bright highlights can make a sticker feel excited or confident, while cooler lighting can support shocked, sad, or dramatic reactions.
Create a full reaction loop
A good 3D emoji pack covers laughing, crying, shocked, angry, side eye, sleepy, love, and proud reactions in one consistent style.