One thing I've always regretted about when I was in Gaia was that I was too lazy to petition for traditional Korean clothes. Lots of avi sites have Japanese and Chinese clothes, but unless the site is run by Koreans, you'd be hard pressed to see any of traditional Korean clothes. So This update is dedicated to traditional Korean garbs; well, the most well known ones, anyway. Expect more when I get back.
Korean garb for women;

the shirt is only long enough to cover the breasts, but the skirt is worn over the breasts, as well; the kitty dress sort of reminds me of the dress. The bow in front of the shirt only has one ear, and it's supposed to be on the left side, but the way the avis were facing, I found it easier to just put it on the right side. You can wear three different colours for the bow, shirt, and skirt, or you can have the skirt match the shirt, or the bow. It's rare that the bow matches the shirt. Usually, the peasants will be wearing this that are not dyed, so white white and white.
The skirt without the shirt:

So it's just basically a big towel with a pair of straps for your arms, and then I messed up with the way it fastens; there's a big long piece of ribbon at the each end of the cloth on the top, and you wrap that over your breasts a couple of times and then tie it together in the front. But anyway. It's also very poofy.
Special Occasion clothes:

Worn on such days as... your hundredth day celebration (you've been alive for 100 days, then you're less likely to die, so that day is celebrated traditionally), your birthday, new years... etc. Usually for smaller girls, though. If there is a set order for the rainbow of colours on the sleave, or the base colour for the shirt front, I wasn't able to find it, but yeah. It`s just a normal clothes, only with rainbow sleeves and maybe golden letters gilded on the bow and the bottom of the skirt. Which are usually red. But yeah.
Traditional garb for men:

Just similar shirt as women's, but longer, and usually white, I believe, and a colourful vest over that. The buttons usually aren't round in shape, but usually tear-drop shaped.
Shirt without the vest:

And this is what men's shirt looks like. 'nuff said.
Hair for youth:

All youth, whether male or female, wear their hair in a braid. Girls will have a red ribbon on the end of their braid without any ears. And then when they get married, they put it in a bun; women at the base of their neck, men on top of their head. They will never cut their hair as long as they live. At least, not before the Japan-Korea merger. I figured I'd show you what the hair looks like, without a body or clothes in front of it, and here it is.