(semi) important question: if you had to associate certain GoT characters with a moon or star motif, which ones would they be???

Moon: Brienne and House Tarth. I will often use the moon for characters associated with wolves (Houses Stark and Cassel).

Star: Members of House Dayne

Khaleesi and Drogo call each other “Moon of My Life” and “My Sun and Stars” respectively, so they are another example.