Martisco Underpass, by Mary Stebbins Taitt, in Andrea's Mole. Click image to view larger.
This is a somewhat strange and fanciful interpretation of the abandoned Martisco underpass. It is done in nail polish, Sakura Gelly Roll Glaze pens, and various metallics. I'd never used the glaze pens before--you probably all know how they produce a textured surface similar to embossing.