One of the closest relatives of cats are dogs. They are both carnivores with binocular vision, they both have to run fast to catch their prey. That’s why you can use dog references as well. But keep in mind the differences.

One of the common mistakes is to make muscles too bulgy and too separated from each other. In fact, they are not that round and thick. If you check dissection videos you will see how close the muscles stick to each other and form the solid shape. I can compare it with orange slices which are flat where they stick to each other but together they form a solid round shape.

Superficial muscles often show the inner structures under them, especially in places where the muscle narrows down into fascia. Zproject brush helps with that.