Here are the front legs bent and formed. I've separated the points of the shoulders. For a Barb Horse, they would be narrow in the width of the chest. So I don't separate them as far as a modern day horses shoulders.

I read someplace that Barbs were so narrow in the chest that when they stood on all four legs their front legs would tend to pyramid or splay out from the shoulder.

When doing a horse from the west in the early to late 1800's you have to keep that in mind.