I have been pondering the creation of an exterior architectural scene tutorial. Although it won't be a Tim Hortons (thanks to my wife for a reminder about copyright issues), this was part of my research. (For those not familiar with Tim Hortons, it is a Canadian chain known for its donuts and coffee).
TurboCAD is sure ideal for this type of work. I am always pleased with what can be achieved with it.
I hope that you like it.
EDIT: Swapped out jpg for png. Better reds this way.