The white horse...Andalucian, right? All the riding, high school stallions are kept like that, while breeding mares are shaved.
It's a traditional, running braid fashion among Baroque show horses. It just has to be tight and pristine to look like that. The key word to listen to, I think, is "show". Braiding and bagging to get an extreme look like that only truly works on a stall-kept horse. (Hence, no pulling of the mane)
Then what you do is take the braids/bags off like once a week, wash and rebraid. And inbetween I've heard you spritz the mane with plain ole' water to keep in hydrated and lessen the irritation.
TJ came to me looking like that from a swanky place (my hauler said he would have eaten off the barn aisle floor!
). I'll see if I can find some pictures to scan. It was amazing!
I can't do it, I'm all thumbs. *sigh* My mother puts TJ's hair up in a running braid. She just can't get it that tight 'cuz she had the tendons in her hands cut. So it would have to be redone every other day. Sooo much maintenence into something like that!! Sheesh!
Personally, I don't believe in stall-keeping any horse. I'd rather have a sane, healthy horse then a pretty postcard.