your muse can have a trope personality trait, but that can’t be the only thing they have
your muse can have a physical ailment/disability, but that can’t be the only thing they have
your muse can have a skill, but that can’t be the only thing they have
your muse can have a lack of a skill, but that can’t be the only thing they have
your muse can be mentally ill, but that can’t be the only thing they are
your muse can be obsessive, but that can’t be the only thing they are
give. your. muses. life! even if something feels all consuming to them, it can’t be their only trait when you portray them. all people have multiple hobbies. all people have multiple traits to themselves. all people have more than their depression/anxiety/etc.
all these things are wonderful to portray and represent, but they need to be people beyond those things to make that representation beautiful.