Please see my 3 questions inscribed in the screenshot from Wiktionary:
the character 馬 existed in oracle bone script, there're numerous versions of it. then, the info quoted has some errors.
first, rotate left 90°
now, you've a side view of a horse: head at the left, tail pointing right, 3 strokes upward represent the mane, the circles are horseshoe, the line (leg) connected it to the body.
it emphasised the big eye of a horse, the mane on its' back, and the "hairy" of a horsetail.
considering it's created several thousand years ago, with the "writing tech" of bones & stone knife, forgive the abstractness :)
have fun :)
If Picasso had painted it that way, it would be worth $50 million dollars! One must allow for artistic license, not demand 100% depictual accuracy, especially when scratching in tortoise shells! Also Wiktionary may err from time to often.
Have a look here.