Describe his hair.
He has short straight grey hair.
Describe her hair.
She has long straight black hair.
Describe his facial hair.
He has a beard.
Describe his facial hair.
He has a curly mustache.
Describe the height of the boy in the middle.
He is (of) medium height.
Describe his skin.
He has light skin.
Describe her hair.
She has long wavy dark brown hair.
Describe her hair.
She has long wavy blonde/fair hair.
Describe his looks.
He looks plain.
Describe his build.
He has broad shoulders. / He's broad-shouldered.
Describe his build.
He's slim.
Describe his hair.
He's bald.
Describe her skin.
She has fair skin.
What's on his face?
He has a scar on his face.
Describe her skin.
She has pale skin.
Describe her hair.
She has long curly red hair.
Describe his skin.
He has dark skin.
Describe his looks.
He is/looks attractive/beautiful/good-looking.