This is a human portrait test in Cycles. The ears needs more work, I think. I hope to see hairs implemented in Cycles someday. Some of the hairs in her eyelids are curves converted to 3D meshes. Rendered, color-corrected, and com posited in Blender 2.63
It took about 30 min. with 110 passes in Cycles.
Here are some of the online tutorials that made a huge difference for this test: SSS in Cycles tutorial on Blendernerd.com and Kent Trammell's head modeling tutorial series on Blendercookie.
And here's a proof screenshot: