Watercolor Painting - Banana

Did a watercolor painting on a bunch of banana last night.  It was done on 7.5 x 10 inches Arches cold press watercolor paper.  Winsor Yellow watercolor paint was used for most of the banana in a wet in wet wash.  The most difficulty I encounter is in the shadows.  It was not easy because of the place of the lighting and the shadow made on the surface.  I should get back to finish my ballroom dance watercolor painting after this one.    I am trying to see what I can do to flatten the watercolor painting after it has been finished.