Having visited several caves in Missouri and Oklahoma last Spring, this poster caught my attention. The monochromatic blue color scheme conveys the cool, dark and damp feeling of a living cave system. The large, lighter colored stalagmite against the smaller, darker colored silhouettes in the foreground and the less defined, darker stalactites in the background create a wonderful sense of space. The small figures at the base of the stalagmite gives one the sense of scale, bringing home the immensity and majesty one might encounter while visiting various cave systems.FYI, if you're traveling through Missouri, check out the Meremec and the Onondaga Caverns. You will definitely experience what this poster is about!