I believe (If I remember correctly) that you go to the opposite side the judge is judging, so if he's on the left, you're on the right, but if he's right in front of you stand on the usual side of your horse..if he's behind your horse you stand in front. Make sure you are always facing the judge. Also make sure you smile and stand straight with good posture.
As far as the grooming goes, I don't think you can help the whole mud thing...but you could thin/pull your horses mane so it's not quite as poofy...but if you like it long, don't bother if it's just a small horseshow. Your halter looks like it needs to be adjusted up a hole on the crown so the noseband isn't so far down. But you're horse looks very shiny and well cared for :).
But I am by no means a halter expert, just the occansional class at a horse show.
Last edited by drafteventer; 01-23-2011 at 04:03 PM.