This is an 16" by 20" gallery wrapped canvas that I bought at Michaels. This is probably the biggest canvas I have ever attempted to paint. I have a few layers of acrylic colors here, using stencils, a sea sponge and some drippage. Some of it is Golden acrylics and some is Adirondack dabbers. I like the super matte finish of the anirondacks-they are easy to use a variety of mediums over. I think this painting is going to be a mermaid. We'll see!