Stephanie Bloom is like that: saddle fitter and artist, and pretty damn good at both, in my opinion. She fits and sells Reactor Panel, Phoenix and Native Pony saddles, and she does some of the most wonderful animal portraits I've seen:
To my eye, the thing that sets her work apart isn't so much the draftsmanship - which, admittedly, is superior - but the expression she captures. When you look at her portraits, you don't just see a black Lab or a chestnut horse - you get a sense of each animal's personality and individual character, an idea of who they are rather than just what they are. Stephanie works in chalk pastels, doing her portraits from photos; she's been doing commissioned portraits since 2009.
You can find out more about Stephanie and her work at http://www.stephaniebloomportraits.co.uk/.