Wing Practice - Gouache

Using Sandy's method of sketching but using gouache instead, I played a bit with wings (and tail feathers).  The idea was to use quick brush strokes so not to over-do or over-work.  I still have a ways to go with what I'm trying to accomplish.  Part might be due to paper I'm using because the paper soaks up the water quickly giving very little time to put pigment to paper and it "move" or disburse as maybe on sized watercolor paper.  Then again it could be the one applying pigment to paper and not the paper at all :)

This is from memory using no reference so anatomy or structure may be off a bit.