And my answer?? A Lot!
You can take the images and use them just as they are - literally copying the composition of the photo and letting it lead you in your design descisions.
Or. . . .You can just take elements here and there - like the style of dress or the background and use it in your next piece.
Or. . You can trace the pose of people in the photo and put them in clothes and settings of a totally different time period
Or. . .You can just be inspired by the feelings and emotion of the photo and let it fuel your main idea for your piece.
Actually, the possibilities are endless.
Tip of the Day:
Once you're on the Commons page - Click on an institution icon to the right of the page (hover your mouse over the icon to see the name). Then click on "Sets" to give you all the different sets in that institution's collection. This will help you easily pick the subject matter you want to browse.
Well. . . .what are you waiting for . . . .go explore!