Sounds like a beautiful bedroom! If you're wanting some advice about how to cover the balcony have you considered adding in some tropical plants and some shade sails? Check out some examples below. Hope this helps!

I love the idea of using a mix Jadownes! It's funny, before starting work for this company I probably would never have considered using artificial plants for anything... I think for me I always had the mentality that fake plants didn't look very good or weren't capable of looking very good. But now.. I love the artificial plants! Of course though, If I had the time, space and ability to use real plants for my vertical garden I would in a heart beat! I think they look good regardless of which way you go and they offer a unique solution to creating some breathe taking spaces!

We have star jasmine out front covering a trellis. Also in Victoria with clay soil. It has grown well in just over 2 years. We have 2 plants covering a little over 2m wide span (maybe 1.3m tall?) Just encourage it to grow out sideways and not always up to give a nice dense coverage from low down. It doesn't flower for very long each year but if healthy then the foliage is attractive. Sorry about odd shaped photo but needed to crop it to just show the plant ;) previous experience with ornamental grape was that it was hardy and could come back from harsh treatment. It really does have a bare look for a large portion of the year though. Great for over a pergola but not so much for disguising a fence/neighbours.

oh, that's a shame, maybe building a simple frame and use galvanised wire strung between and train the creeper on that could look great and reduce the noise dramatically, an evergreen like star jasmine would look beautiful and the perfume is an added bonus or check what grows well in your area. Do you have any area to plant as they don't need a huge amount of room on the ground as they love to climb.