Scott,
Isn't there also the possibility of a rear bunker on #12?
What can't be perceived from the photo is how the green slopes away from front to back. I don't think you could call it 'tiered', but the first 2/3's of its surface is littered with little mounds and swales, making any chip or putt from the front to a back pin challenging, to say the least. Also, it is a rare occurence to play this hole sans wind, I've seen 5 clubs of difference, and the intensity and direction from which it blows can change mid-swing.
The photo of #18 green is misleading, it makes the green look too serene!
If a player was standing on the front left of the green he would have to putt the ball almost all the way to the back left corner and let the ball trickle down to where the flag is located in this photo. You'll see this location used quite often and it's as good to put an approach shot flag high in the right rough as it is to be anywhere else.