Tips on taking good photos
Make sure you're not towering over your pet. Try to get down to their eye-level and snap photos, unless you're looking for something a little quirkier and you want them looking up at the camera. Also be cognizant of the distance between you and your subject. If you're really close, your pet will end up with a nose that looks a lot bigger - but some people like that too - it can make for a funny painting, if that's what you're after. I suggest you get your pet in natural light with their face toward or partially toward the light. Snapping a photo with their face in shade won't do much to highlight their eyes, which is important in order to capture their true expression. Eyes are the window to the soul, after all. Best of luck!