Is that photo from a dressage class? Because there are a lot of good, dressagey type things going on in that one too. Horse really looks active and energetic, reins are a good length, horse looks balanced, rider has nice position.
The neck might be stretched out a little longer.
I often read intense internet debates on photos of horses when it is a young horse in a more 'up' posture on a shorter rein at the lower levels.
I think it was put the best at the judge's seminar last month - that some riders can do this successfully and others cannot.
The outline seems to work well with this horse.