Experimenting with grisaille and glazes

Painting by Vicky Christensen, acrylic on 18 X 14 inch canvas 

I wanted to experiment more with the grisaille technique. I created a grisaille underpainting with black pastel, glazing liquid and titanium white paint (see below). After it was dry I 'colorized' it with glazes of transparent paints and glazing liquid.

Grisaille underpainting