Depending on your horse's age, discipline, level of training, etc., as a buyer I might prefer to initially see an "action shot" returned with my search results, provided you are talking about a shot of the horse under saddle. This is completely just my personal view, but when I run a search and I'm looking for a horse that is beyond the "prospect" stage, photos of horses actually working and looking good doing it (I'm talking about well turned out, possibly from a show) catch my eye, and they tell me that if I click that ad, I'm not going to be wasting my time on a horse that is marketed as a dressage horse simply because it has a big trot out in the pasture.