yes...a Friesian for sure...do you need to know the name?
Probably. We won't know the actual question they'll ask about the picture until the actual contest (Feb 9-11). Usually the question will be fairly specific (ie, it might be the name of the horse and/or the person, or something about what they're known for), but occasionally it's more general.
It might be something more local too (maybe there was a Dressage competitor that was in the local paper). Otherwise it's probably either a famous person and their horse, or a famous horse (maybe in a movie?).