Here's a cat redline, I couldn't really tell if canine or feline so I guessed cat?
I put some numbers here and there, and they all correspond to a tip:
1- Long, thin tail. No massive fluff.
2- Back leg shape. A lot of new artists struggle with that :3
3- Front leg indentation
4- Fluff
5- Face in general. The eyes, the nose, and the chin.
6- Shoulder blades. Never forget 'em.
7- Curved back
Hope this helps!

