Before this, I had no idea Arabian horses have such a distinctive head shape - almost conical, with large eyes and nostrils, and a concave-ish 'forehead/bridge of nose' area. Their neck has a pronounced arch, and the lower back (croup) is flat with a high-pointing tail. Beautiful animals indeed!
A slightly closer view...
Ref images by kind courtesy of Jello88 in deviantart.com