Mi familia es muy pequeña. Tengo dos hermanos y dos padres que viven conmigo. Mi hermano es simpático, alto, y usualmente está enojado....: My family is very small. I have 2 brothers and 2 parents that live with me. My brother is nice, tall, and he's usually mad.
Explanation:
I would use words like: simpático/a, bajo/a, alto/a to describe your family. Make sure to always use ser while describing their traits and use estar when describing their emotions.