Learn my technique for varnishing my oil paintings with Gamvar by Gamblin. I'll give you some practical reasons why you should always varnish your paintings
Are You Afraid of Varnishing? — KATIE KOENIG ART
How I varnish my oil paintings
Painting a black and white portrait with a colorful seascape
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how to varnish an oil painting
How to Varnish an Oil Painting with Gamvar Varnish ( 2 min tutorial + save time + save money )