Did you take a look at the slides I published earlier this week? I have now put the accompanying script online as a PDF document. It refers to the slides and provided the framework I used to deliver my talk.

Note that all images in the slides (apart from the wallpaper one, which is a photograph of my own painting!) were sourced from Wikipedia and available under a suitable licence. You should be able to track them down by artist name and, where given, by painting title.