Retrospectively, I could have gone darker with the above page, but I'm somewhat glad I didn't, as the rest of the chapter is about to get really dark (color wise, not tone wise). By holding back, I'm left with somewhere to go.
I think these pages have also photographed somewhat light. This can be chalked up to the camera I'm using (actually my phone, which allows me to sync to Sugarsync and Blogger).
And here's the last finished page, a continuation of the glow effect.