realistic female 3d character

Refine the existing female 3D character into "Olivia," a human-inspired AI companion built around the philosophy "Believable Presence Over Perfection." Preserve her warm and approachable appearance while increasing realism. Reduce eye size by approximately 10–15% and enhance iris and eyelid detail for natural expression. Slightly define the jawline to communicate maturity and quiet confidence while maintaining femininity. Replace the current hairstyle with a dark brown high ponytail featuring soft face-framing strands. Improve eyebrow realism with subtle arching and individual hair detail. Maintain a gentle, authentic smile with minimal intensity. Use realistic skin textures with natural imperfections and soft shading. Ensure the final character appears intelligent, supportive, calm, trustworthy, and emotionally warm. The overall impression should be that of a reliable companion someone could comfortably speak with every day.