My Backyard Woodspirit

I have a maple tree in my yard that last a large branch in its youth, and it was left with this large knot hole. I have been trying to come up with a decorative element to fill the space, and tried my hand a carving a face to fit the cavity. It is carved from western cedar and measures about 12 x 6 inches and is friction fit.
It has weathered two years of Minnesota summers and winters and is doing well.