He also suggested adding a larger image to the middle div, which I did. Instead of one image, I added a FlexSlider slideshow of a few of Ellen's paintings, courtesy of Woo Themes. I also changed the background from white to an image from Subtle Patterns called "padded" and added the yellow-orange color from the cover of "Thinking with Type" to the header & footer. To add some emphasis on the typographical elements, I added some accent classes. I need to adjust the size of the FlexSlider next, and possibly change the background.
Below is my final version of my web page. I tried for hours to get the FlexSlider to a more suitable size, but could not fix it after trying a few remedies posted by others on the Web. I also tried resizing the larger images, but it didn't help at all. I did end up changing the background image to "Type" from Subtle Patterns. I thought this was appropriate since Ellen Lupton's design focus is typography.