Alright, this took a lot longer than expected, mostly because it took so many tries to get certain features right XP .
Today is not my day.
Alright, so I made notes on the image, but I'll write them here too:
-Make the ears a little thinner, and have less of the back of the ear showing.
-The back leg should be a little taller, and rather than making it roughly into a half circle, make it taller and steeper.
-For the front legs, they should start a little lower, and the top a little less curved.
-The tail could be slightly shorter and thinner, but that's more preference.
-I suggest you turn up your smoothing, if you don't know how, I made a little sketch under where I said that of the tool options box, the one where you set the brush size, opacity, etc. The bar circled in red, which is at the very bottom of the box, is your smoothing. I suggest you turn it up to somewhere between 80-90 for mouse, however whatever feels comfortable for you, and creates a smooth line, is good. (Smoothing slows down your strokes so that you don't get those little bumps in your line.)
-For the mouth, typically a cat's mouth much small, with the lines pretty much stopping on their first downward slope, however I made my cat smiling a little, which is probably as big as you want to go with the mouth.






