There are a lot of artists here on the forum! I'm sure someone might be interested in stable yard illustrations.
But I think it will be helpful if you can go a bit more in detail:
How many pictures do you need, what kind of pictures (ie. just the stable building, other architecture or landscape, or a map/floor plan, or pictures about horses? different artists make different things...), and maybe what your budget is?
It always takes a while of time and a alot of effort to make very detailed and smooth-looking, colourful pictures! (I assume that's what you mean with video game style? Is there any example games that you could mention?)
So if you can share a bit more about your wishes, then maybe the artists here will be more ready to make an offer 🙂
(I myself am very busy this autumn and only make portraits for now, so it will not be me, but maybe someone else is interested!)