Cool site! Thanks for thatYou're going to have to play around with the exact street address in Ascot, and where you want to end up in Creek Street, but here's a great site that'll show it to you.
I've entered Ascot and Creek Street for you.
http://www.ridethecity.com/brisbane#1931131
Play around with the drop field selection for maximise bikeways to get varied routes.