Ooooh... look at the puuurty building!
Gorgeous shots here mate. it's awesome that you are so lucky to have such a gorgeous building to photograph. (wow too many adjectives in that sentance).
The first one would have to be my favourite because the opera house sort of blends in to the high rises and you can't really see it first and then all of a sudden - Bang! - there's the opera house. One of the most distinctive buildings on the planet and I reckon you did a great job with it. All the pics are gorgeous and spot on.