That's not what I saw when I took the picture. Not those colors.
Now I've calibrated the image so that the face of the largest building is not pink:
Good enough. But where's that green come from? I'm certain I didn't see that.
This is what I settled on:
Still, where'd that pink come from? Was it really there?
Here we see pink clouds:
Is the pink on the face of that building a reflection from the clouds, something registered by my camera, but not my eye?
This, of course, solves the problem, but at a price:
For a more detailed discussion of color and color photography, see Color the Subject.