Well that's the bottom bit done, just the decking on the top, then make the handrails. The bank raises up steeply from the base of the balcony, to about the same height as the balcony, so there may also be a bridge on the way, leading to a secluded decked area, only accessed from the bedroom.

Shame about all the clutter in background, ladders, pipes etc, messy buggers them plumbers.....