Painting Kirkside Park

Here's a quick video showing you a casein painting of a couple of old willows in a park. (Direct link to video)

I'm using a fuller palette here than usual: titanium white, ivory black, cobalt blue, cerulean blue, chromium oxide green deep, alizarin crimson, light red, golden ochre, and cadmium yellow light.

I also used a few touches of water-soluble colored pencils over the dry paint, with notes drawn in a fountain pen. I like this combination of painting and drawing materials because it's fast and you can get textures and effects that you can't get with drawing or painting media alone.
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Sign up for my pay-what-you-want live stream this Saturday in New York City at Concert Window Open.
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Here's the tech:
I was using Richeson / Shiva casein
1/4 inch flat brush 
Moleskine watercolor notebook
Caran D'Ache watercolor pencils
Waterman Phileas red fountain pen 
Camera: GoPro HD Hero rotating on a kitchen timer at 2 second intervals
Lots of info on casein at Richeson's FAQ about casein