Headings and subheadings are uses consistently. Headings, topics and important information are in bold, different font colors and italics to place emphasis on material that you really need to pay close attention to throughout the lesson. All of the information on each web page can stand alone. All of these pages could work just fine alone. All frames are used appropriatedly and for the purpose in which they were intended to be used and that is for learning and understanding about art.
Multimedia is used appropriately.
When you are dealing with art, multimedia is needed as much as possible. They really took advantage of this medium. Pages load very quickly. Not even a second goes by, before the next screen appears. This is wonderful, especially if time is an issue.