Arnold Render with Ten24 Head Scan

Arnold Render

Arnold Standard Shader

Color Map plus Procedural Noise

HDR Light Probe
1920x1400

Sample: 72224
1hr49min on Intel Core 2600

Ten24 Head Scan

Arnold Render

Arnold SkinSSS Shader

Color Map

HDR Light Probe
1920x1400

Sample: 62224
52min on Intel Core 2600

Ten24 Head Scan