I'm a little confused on the difference between 綺麗【きれい】 and 美しい【うつくしい】. When is it appropriate to use either word to refer to a person?
For example, if I wanted to refer to a woman as beautiful, would I say 「綺麗【きれい】な女【おんな】」 or 「美【うつく】しい女【おんな】」?
Does it matter what age a person is? Is one only appropriate if the person is young like in their 20s, late teens or a teenager? Do you only use one when they are in their 30s or older?