This Game of Thrones foto contains
pferdewrangler, wrangler, pferd wrangler, lippizan, lipizzaner, and lippizaner.
There might also be
reitweg, pferdepfad, packpferd, lastesel, reitpferd, reiten, montieren, sattelpferd, and berg.
This video contains major spoilers for Book 5 / Season 5, and some minor spoilers/references from the "Mercy" TWOW chapter. Basically, if you've read Book 5 oder seen Season 5, Du can watch this video without having anything significant spoiled.