Just to say, equestrian breeches usually have a leather or "grippy" fabric part sewn on the inner legs (sometimes the thighs, some and crotch to prevent chafing and to keep yourself in the saddle, and it is usually colored differently. Totally up to you if you do it, but I just thought you'd like to know for details sake
While I love the Jocky uniform, isn't Emily blind? I'm sure she could pull off the look, and riding a horse should be well within her ability, but racing is a situation where you need to be able to see in front of you. All the sensitive ears in the world wouldn't be able to filter out the wind and the sound of a bunch of hooves stomping all at once.
That aside, these are some damn snazzy clothes. I wish I had the talent for drawing clothing that you do. All I seem to be good at is anatomy.
I know it's confusing, because we still haven't put up an actual character page (and because you can't actually see their hair/faces) but Emily is deaf, not blind. Sofie (whose fashions you can see here: [link]) is the blind protagonist. ;D