Cellulite is a distinctive dimpling in the skin, somewhat resembling the texture of orange peel. It is usually seen on the thighs and bottom of adult women. Cellulite is caused by fat under the skin being textured by connective tissue.
Your cheeks are on either side of your face. They are usually round and rosy. The bone you can feel near the top of your cheek is called your cheekbone.
Your chest is on the front of your body, below your neck and above your waist. Adult men usually grow hair on their chests. The top part of your body including your chest and back is called your torso.
A claw is something hard and pointed that is found on the end of the toes of most animals and birds. People do not have claws - we have fingernails instead. Claws help animals to climb trees, scratch other animals, or grip the ground so they can run faster.
A cleavage is the hole left after you cleave something. More commonly though, a cleavage is the space between a woman's breasts.
A crest is the highest part of something, or something on the top of something else. The bird in the picture has a crest of feathers on top of its head.