We know the image has very few pure white areas, a bunch of pure black areas, and is mostly composed of tones in the lower quartertones.
That's either a reasonably exposed low-key image, an underexposed medium-key image, or is a very undererexposed high-key image.
(The last is unlikely, as there are some pure white areas, so unless there's a lot of specular highlights, it's unlikely to be intended as a high-key image.)
We can tell that the upper lower-quartertones have a lot of red.
We still don't know if it's properly exposed from the histogram alone.
From the histogram and the image, we can say it's probably properly exposed
©2008 Kevin Connery
July 1, 2008