I agree with everyone about wanting the top of the arch there...that would sort of complete the look to me.
I'll go against the grain though, and say that I'd clone out the handrails. This doorway, especially with those heavy wooden doors, just gives me an almost medieval feel, like this is the entrance to some fortified abbey in 1300s England (okay so I read way too much into things sometimes). Anyway, that look is totally disrupted to me by those modern handrails. I think if the arch were complete, you wouldn't need the handrails to lead you upwards through the photo...the arch would accomplish that on its own.