While we're at it... it's "LEAVING FL350" not "LEFT FL350"!
Amazing that the Aussie ATC RADAR tags do not have altitude readout!!!! It appears that the remainder of the world ATC RADAR can SEE you start descent.
WTF would you need to tell them that you have commenced descent, you already have a clearance to decend?
To be really anal. Call when "leaving FL350" this would mean that you have not already started descent. So the call should be "left FL350"