Nice tie, Mark.
Don't know how much you fish coldwater, but that pattern's a deadly stonefly/hopper imitation for trout. I tie them with orange bellies for the june stonefly hatches on the Deerfield.
Nice use of the foam - god's gift to fly tiers. For even more floatation, you can wind the hook with the thread/yarn of your choice, lay a strip of foam flat over the back of the hook, and lash down zonker-style. Lots of the new western stone patterns are tied this way.