Realism hinges on proportion, anatomy, and proportional harmony. Start with the head-to-body ratio, which should reflect natural human anatomy rather than exaggerated caricature. Consider limb length relative to torso and the curvature of the spine; well-balanced proportions tend to look more natural in casual poses. Pay attention to joint articulation: smooth movement should mimic human capabilities without visible stiffness or overly mechanical resistance. Skin tone, texture, and color transitions should appear consistent across the whole body, avoiding obvious seams or mismatches at the neck, wrists, or ankles.
Customization options can influence realism. Taller heights, varied body types, and proportion tweaks allow for closer alignment with user preferences, while ensuring the whole form remains cohesive. Evaluate shoulders, chest, hips, and knee structure for natural alignment in common sitting and standing positions. Lighting in your space can affect perceived realism; a well-lit room with diffuse light highlights desirable contours while minimizing harsh shadows. Remember that realism is a blend of anatomy, texture, and articulation—prioritize a thoughtful combination over a single feature.