Doing something like this is super easy and I think turns out really well, so I thought I would do a little how to create a set up like this and What you need to do it. I will do it in parts, e.g, how to create/set up, the jump, the backdrop, and horse and rider. You don't need all the things I used, and if you don't have them you can swap them for something else. Such as I used tack but thats not necessary. Just really need a Breyer/Model horse and some imagination.
So keep your eyes out for these up coming tutorials :)