Here are a few of my favorite coloring book webpages.
http://www.crayola.com/free-coloring-pages/ Do not resist what you will enjoy.
http://www.janbrett.com/activities_pages_artwork.htm Her art in colorbook form, how wonderful!
http://www.momes.net/coloriages/coloriages-peintres.html You do not need to speak French to color these famous works of art.
These should be enough to get you started doing a pasttime that you may have brushed aside. While you are coloring the paintings of Goya, Cassatt, Monet, Renoir, perhaps pick up Wendy Beckett’s lovely books and her appreciation for art expressed so vividly.