This is the Trump image I'm presently using. There seems to be a paucity of others springing up, so I'll leave this as-is for now. The main inaccurate detail is the hair, which is white-blonde (clearly this is subject to change, but Sebastian has rather a strong bias towards his original human shape so it doesn't much.)
Oh, and credit where it's due - I stole the face from this page, which I rather like.