I happened across a magazine I had to buy for an artist I know... and found something in it that might be of interest to SL clothiers.
It's ImagineFX's How to Draw and Paint Fantasy Females. Lots of tutorials and hints for illustration, especially eyes, lips, and hair; telling a story with an image... but in particular, three tutorials on clothing. The one that especially caught my eye described how to draw a satin gown. How I'd love to be able to wear that gown in SL! It won't happen really until SL dresses become something more than strips of cloth tied together at the waist, but the texture and the detail at the top will, I hope, inspire someone not to duplicate it, but to do something in satin that is as lovely.