Dan;
Thanks for the photos, though your statement that the architects put the bunker in the fourth photo there to purposely upset the player might be, well, just a little bit off the mark!! That bunker is more accurately on the right side of the green, and will help the player keep their errant ball in some kind of playable position, out of the wetland that lies below.
The slope between that bunker and the green is being maintained pretty well so far, for in the soon to be immortal words of Tom Doak, "if anyone can do it, Ken Nice can!"
The red paint lines are there from the last visit of the 'bunker guru' and used to define bunker edge location on his final go-round before opening. That bunker guru, and I can't quite remember his name, is a pretty good guy, though he has decided to grow his hair long now in a return to his liberal, radical, Arkansas roots!!
Tom