Baroque Oil Painting - your thoughts?

Here is the painting: http://www.paintingall.com/images/P/French-Baroque-Painter-Sebastien-Bourdon-St-Peter-Exorcising-a-Possessed-Woman-Oil-Painting.jpg

It is Sebastien Bourdon’s “St. Peter Exorcising a Possessed Woman” completed in 1645 during the Baroque period.

I have to do a term paper on this oil painting for my art history class. It should be 3–4 pages, and after exhausting everything I can say about the piece, I’m only just starting a third page.

I’m not big on art. I appreciate it, but 4 pages on this little painting? Not easy for someone who doesn’t have much interest in it. I know quite a bit about the post-Reformation Baroque period (trying to bring the people back to the church, dramatic and emotional art, chiaroscuro, etc.), but I’m honestly out of things to say about it.

I’m not asking anyone to write my paper for me, but maybe those of you who are into art can give me a few things to think about. I’m writing about how Bourdon’s use of color, light, and space exemplifies the emotional, dramatic art movement in post-Reformation Europe.

Any thoughts at all would be appreciated. :)