Love it! Teri, for quilting I'd be putting some wandering feather design in (like this...
http://www.annebright.com/shop/produ...-feathers-b2b/). I suspect you won't see much other than texture, and I'd want to do something curvy to soften all of the lines.
Or this ...
http://www.annebright.com/shop/product/cock-s-comb-b2b/ - one feather frond in each quarter of a square.
Either of these should freehand fairly well.
(No affiliation with Ann Bright, just a fan!)