Challenge 38 "pair o ducks"

The challenge this week was called "pair o Ducks" to make a pun on the tangle "paradox", one of my favorites.  It was a thrill to be able to participate this time after an 11 week dry spell.  Sometimes life just gets in the way of what you want to be doing.  I'm attaching the non-shaded version too, so you can see the difference that shading makes.