Thanks Brian and John.
It has struck me before that this is perhaps the best way to anaylze architecture, i.e. if one is going to try to judge the architecture from pictures only, it's best to do it when the hole/course is covered in snow. The snow covers up a lot of the distracting/unimportant bits, and leaves us looking at just the general shapes and contours and key 'relationships' (e.g. green sites in relationship to fairway angles).
Peter