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The first layer defines, the second refines. The ‘foundation’ layer is fairly lightly applied, but still picks up pigment from the initial working-over with the sticks as they are quite soft and powdery. I apply the top layer more firmly and this is what gives the velvety finish. For blending, I tease the surface with a pale pastel, using just sufficient pressure to collect the foundation pigment and distribute it into the adjoining colour. Sharp detail is achieved by applying rapid, firm strokes.
Pastel mixes beautifully on the paper, and by varying the pressure applied, the artist can control the mixture between the foundation layer and the fresh one. There is a limit to how much this can be done before it results in mud. The only way is to get to know the materials intimately with lots of practice. If disaster strikes, I use blu-tak to lift the offending layer off the surface. I also use it at the end, to pick up all the bits of pastel dust off the clean surface of the background. Erasers are too clumsy and destructive!
Because pastel creates so much dust, which gets everywhere, it’s usually necessary to re-establish the blacks and whites at the end, to crisp them up. It can be handy to go back to the pastel sticks for this as they tend to have stronger pigment.
I continue in this way from top to bottom, and left to right, taking breaks from the painting every couple of hours or so, so I can look at it with fresh eyes and spot anything that’s not quite right. This painting, which measures 19x15”, took around a week to complete.
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