This mare is built very downhill, to start. She has a bit of a ewe neck that ties too high into her steep shoulder. She's post legged in the hind end and stands over at the knee in the front end. She has a steep croup and her tail is set too high. I'm not going to go so far as to call her wasp-waisted, but she isn't deep enough in her flanks. Her back looks weak, and her neck is a bit short, but she's short coupled all around.
She could use some weight. And lacks muscle all around; especially over her topline.