Look like describes physical appearance

Be like describes personality.

WHAT DOES HE LOOK LIKE? (¿Cómo es él de aspecto?)
He’s tall and he has short and dark hair.

WHAT’S HE LIKE? (¿Cómo es ella de carácter?)
He is a nice guy, funny, quiet and smart.

I don’t know what he’s like but I know what he looks like

The question: Who does he look like asks for an answer that is the name of a specific person.  It’s a question people often ask about a child.
He looks like his mother.
He looks like an angel

How does he look like?, Wrong!!!!!!!!!!