If you want to make a realistic or semi-realistic fursuit yourself, you can go to Dream Vision Creations and find resin bases, claws, jaw sets, and much more. I'm going to make a fursuit head with stuff from DVC.
Want to make your character more expressive? It’s all in the eyes! My favorite thing to do when making fursuit eyes to off-center the pupil so the gaze is focused. (More iris visible on the outer edges) If you are already exaggerating and flattening.