How to do trim around this doorway
I want to trim out this doorway:
to look something like this (general idea, not the exact design):
My challenge: on the inside of the room, we've put up 5" crown molding, but the ceiling doesn't drop down when it gets to the doorway, so if the crown molding continued around, it would hang down below, which would obviously look stupid. And I can't run the crown around the 12" wall, because it wouldn't blend with the pediment/casing on the doorway. What's the best way to make this look good? I'm thinking I could build a small soffit across the doorway, then run the crown across the back and do all the trim on the front.
Will that work? Other ideas/methods of attacking this?