La Catrina represents the upper class and the understanding that no one, not even aristocrats, are immune from death when it comes calling.
I also see Catrina as representing fun and play in afterlife, as she is so often dressed in fancy, colorful clothing adorned with flowers and smiling gleefully.
This Catrina art doll is made entirely of polymer clay with a bit of Tibetan lambs wool as hair. She is 7.5" tall.
I made her for the PCAGOE (polymer clay artisans guild of etsy) October challenge. The theme is "Dia de los Muertos".
I posted the "making of Catrina" pics on Flickr: http://www.flickr.com/photos/spiritmama/sets/72157607277632713/And she is now available for sale on etsy: