Work in progress--upside down

I finished this painting yesterday. It's a vase I bought at the Kings Mountain Art Festival last summer, the artist carved fish into the clay so it almost looks like wood. I put some dried leaves into it and photographed it on top of a black and white plaid kitchen towel. In this picture, I have turned it upside down so I can work on the leaves--the reference photo above it is also upside down. Working this way is an excellent drawing technique as it tricks your brain, so it doesn't think of the shapes as "leaf" or "vase" but instead, sees them merely as shapes and colors.