Camera phone in hand, I take a few steps back from the canvas and snap a quick picture every few hours until the painting is finished. Once the painting is complete I take a 'professional' photo and upload all images onto iMovie. 
With a song I like, or consider appropriate, I create a 1or 2min video using the photos. What I'm left with is a short video of my painting process not useful for anything, but mildly entertaining. These are the resulting vids... Be mildly entertained...