Most animation cartoonists who come to Theory Corner probably aren't interested in fashion illustration, I guess because animation requires simpler, less nuanced costume color. That's understandable, but I'd argue that a study of that medium, fashion I mean, is still useful for our trade, regardless of whether what we do ends up being on the screen or not. It's simply a good training ground for a certain kind of color and line.
It encourages doodling in color, as in these Christian LaCroix sketches.
LaCroix's sketches are reproduced in several books. They'd make great Christmas gifts for artists.
I did a search for posters of the the sort of sketches LaCroix does but I didn't turn up anything first rate.
To judge from his office pictures on the net, the posters he puts on his own wall are colorful prints from other media.
*******************
BTW: My hits have diminished in the last couple of weeks, maybe because people are focused on the holiday. That's okay, so am I. I think I'll take this opportunity to post on a reduced schedule for a couple of weeks. I'll be back on an a full schedule soon after Christmas.