Well, I'm glad to see I wasn't the only one to mess up in the last few challenges! (see my Minimalism II score...) lol - I think we have a bit of synchronistic decision making going on, roz!
Tell you what, I'll race you to the brown!!! ha ha
Sheesh. There's nothing wrong with your photograph. I think there must be some hex on the sad, crumbly foundations of destroyed homes. There's one near us that I try shooting in all sorts of light and no matter what I do, it never looks as interesting in 2D. That said, I bet that if this had been an advanced challenge, you would have been able to apply some funky processing to increase the curb appeal :)