This is a cross-section of the female pelvic area.

I started with some models Cyber-Anatomy already had (a male pelvis, some muscles, skin, intestines, etc.)

and reshaped and reworked them to create a female pelvic cross-section that was proportionately accurate.

I built the following components from scratch:

muscles of the pelvic floor, reproductive organs, most nerves, most vessels, and the fat layer.