Help with asymmetric doorways (moulding)

Attached is a picture (strangely rotated) of my problematic doorway. We are refinishing a living room, and there is also a normal doorway on the same wall. The three options we are evaluating for moulding are 1.) Simple mitered casing, 2.) Rosettes, 3.) A capital. On the full doorway, we are fans of the capital, but don't know if that would look ridiculous with one side ending flat against the perpendicular wall. Any advice?