We need better pictures....
Naked horse, only a halter and shank...
Pictures from both sides with the horse standing as square on his feet as you can.
Picture from the front, picture from the back so legs are clearly seen and where they are placed in regard to the body itself.
A picture of the head from side can also tell much about the throat-latch area and build of the facial bones...
Look at some of the other conformation threads and the pictures they presented, then do the same with your horse.
With you riding, tack covering...it is unfair of us to make comments about your horse.
Remember, opinions given are just that, "opinion"...
not fact.
What one person likes another may not...
The biggest thing though is what is not seen....
Heart....the heart of the horse, the will to try to please you can far surpass any horses build in being athletic, a horse who wants to do...
There is no measuring heart from a picture, that is what you the owner get to feel every-time you swing a leg over the back and the horse works for you....
heart! 
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