Paul,
When I did my copywriting training, we were always told "never let the reader have to work something out themselves". So...
Make sure you have captions under EVERY image / photograph.
I see it is a Wordpress site. Are you doing it yourself?
If you are, add a plug in called CB Net Ping Optimizer. The reason for this is that every time you re publish a page, Wordpress "pings" the spiders. If you are constantly changing the page, you might send out say, twenty pings. This is "unusual" activity and can be interpreted as spamming. This plug in limits these pings to "normal" (large scale changes) which looks more natural.