I took some in progress pics of one of the little heads. I'm using gouache but in a very watercolory way, no white, just diluted shades of black paint. I work from light to dark in typical watercolor style. Alex Ross works the opposite way, establishing the blacks first then adding shades of grey. Maybe I'll give that a try once I get a better feel for things.
With acrylics and oils I jump in with much less of a drawing at the beginning and work from dark to light so this technique uses a whole 'nother side of my brain ;)
