The white and red bow ribbon is of course the Order of Canada. What is the other order the Queen is wearing? The Order of Military Merit perhaps?
It is quite interesting that one of the few powers that are exercised personally by the Queen of Canada and not delegated to the Governor General is the power to create new orders and decorations, which is done solely by letters patent issued by the sovereign. Apparently King George VI was adamant about reserving that power to the monarch when he issued the LPs of 1947 constituting the office of Governor General.