The title is "Oyster Shell on the Half Log"  This is a modified polypore in which the distort function was used on a quarter of it.  With polar coordinates you can achieve the curve.  Then, as this is another quadrant reflection, you can use distortion to change the lower half to a slightly shorter shape.  Using low key you can take the color out the corners.  A few taps on the saturated slide film will add the richness.  But, the reason this ended up getting posted in lens flare is to show the judicious use of a lens flare can create a pearl with my oyster.