I think one way that might help in addition to what's already been said, is having your stuff 3D printed. Show that your work can be made physical and still look top notch. Haz's Kingdom Death work is a prime example of this (I don't think he personally printed them, but the CG to physical translation is stellar.)
I don't think there are many full-time jobs for toy/statue/mini work. There is a lot of freelance work floating around though. You can find some miniature game companies that require cg artists on kickstarter. I've managed to get toy work with just a game art portfolio, so I think you just need to demonstrate good…