First way.
¿Cómo es él?
This question translates into How is he like? Here we want to know how a person is like. So we use the verb ser whose conjugation for the third person singular in masculine form is él. We use the verb ser to talk about permanent or lasting attributes. In this way, this verb stands for descriptions, occupations, characteristics, time, origin and relationships. Here this verb stands for descriptions talking about the essential qualities that describe a person or things like names, nationalities, physical descriptions and religions
Second way.
¿Cómo luce él?
This question translates into How does he look like? Here we use the verb lucir that translates into to look. This question stands for the simple present. So the conjugation of this verb for the third person singular in this tense is luce. The simple present tense is used to talk about habitual actions or routines. This tense is also used to describe things that happen now or in the near future.
Third way.
¿Qué aspecto tiene él?
This translates into the same How does he look like? So here we are asking for his physical descriptions, that is, we want someone to describe him. Moreover, here we use the verb tener in the simple present whose conjugation for the third person singular is tiene