I used to work with a horse photographer and I had never seen one this size.   

Is Poe The New World's Tallest Horse?

My garden backs on to a field of horses, none are near the size of Poe.

Sure is a big one, or is the woman in the video a midget?

I know, sorry but someone had to say it     

I think it said she is 5' 2" at some point.  So not tall but certainly not a midget either 

I 've seen a horse of just over 18 hands before, and Eglish Shire horse, but this chap is somewhat taller than that at over 20 hands.

An absolutely beautiful animal 

Now that's a lump of a Horse, you wouldn't want that bugger on your foot.  Fair few Burgers there though.