This is a philosophical image for me than a natural history composition. A sheer brilliance in itself. The form of the shell is looking like a Buddhist Stupa to me and the tonal range around has a very calm mood in it making it feel the silence. For me this image takes me beyond the reality instantly and puts me into the thought. An amazing image here Ganesh and thanks a ton for sharing...
Now, coming to the technical aspect, for my taste the light in the sky is a wee bit high and I would burn few bright portion of it. I would dodge a bit on few faces of the shell to make it a wee bit standout. I will try to do these changes on my machine and will upload the image in the Illustration forum.
-- This line is added by Ganesh H Shankar - related thread in the illustration forum
here.