So let's compare Jetta's conformation. This picture isn't the best because she's standing under herself in the back for some reason (that's not how she normally stands) but it's the best I have.
Based on Judy Wardrope's articles, I think Jetta looks as if her conformation is leaning more towards jumping than dressage, or maybe both for eventing? Her LS looks as if it's directly above the point of her hip (I think), her hind leg stands inside of an imaginary line dropped straight down from her point of buttock (a jumper trait). It seems like she has a pretty symmetrical (equilateral) triangle from point-of-hip to point-of-buttock to stifle, though I can't be sure if her femur is slightly longer than her ilium or not (a dressage trait). She has a pretty cat-like walk which makes me think that she does have a longer femur which means a longer stride, though she'll have more difficulty in the piaffe, passage and pirouette. Her stifle is nice and low. She has a pretty high point of shoulder with a long sloping shoulder and an upright humerus which is relatively long meaning she has a long stride. Her pillar of support comes out in front of her withers meaning she's not super heavy on the forehand. Her neck does look like it ties in a little lower than would be ideal, but she has a clean throatlatch and in this picture looks as if she has more muscle on the underside of her neck, so we're working on that right now. I just wish her head was a little smaller and daintier :)