Custom horse minimalist design

My best friend and I are looking to get a design of our two horses. We were thinking their side profiles in the shape of a heart. We’re not set on that and open to suggestions. Our horses are best friends as well. We want to capture their personalities. Looking for something simple. Behind my friends horse she would want a cactus and behind mine something Aztec themed. Let me know if you can do that and what the cost would be.