I agree that the photos section is a bit random, but at the same time it does give a new visitor to the site a pretty decent overview of the range of climbing in WA.
I have started adding some photos into the Online Guide. For example, Mount Cuthbert has a couple of photos, as do many other areas around Perth. My goal is to eventually have lots of photos for every crag since it is the easiest way to convey a snapshot of what it is like.