Really? It's one of the best in Canada. Montréal is probably the only Canadian city that does modern architecture right. (Though they aren't without their architectural abortions..)
Lets look at some buildings in Brisbane, Queesland for some inspiration. These are buildings that I found interesting enough to bookmark.
Aurora is just over 200m tall, and would look great along the river. Imagine a marina area coming out of the base. It would
definitely stand out - and be one of the tallest buildings in the country. This is one of my favourite residential buildings in the world.
Felix Tower - see Aurora.
Vision - make it about 100m shorter and it might fit in well in P&M. Maybe make it about 15m taller than CWP and add a spire that follows the curve of the building? LED lights could light it up, pulsing along the curved spine of the tower.