Please flag me if unappropriated but: the pictures used to illustrate this article uses HDR in a particularly unsubtle way (i.e. there are visible halos between the sky and the colors are way over saturated).
There are probably pictures of Siccar Point that reflect better the reality of the place than those gaudy images.
Also the saturation is cranked up to 11, and maybe some kind of diffuse-glow effect.
I don't think you're being inappropriate. The processing totally ruins what would otherwise be strong contrast between red-orange sandstone and greywhacke which is normally grey (plus whatever is growing on it) instead of the orange-ish colour it has in those particular photos. In other photos the unconformity is much easier to see.
There are probably pictures of Siccar Point that reflect better the reality of the place than those gaudy images.