This is a wonderful photograph!
I really enjoy how you kept the contrast to a minimum because you made this image so peaceful through the exposure, however I wish I saw the slightest bit more value to get just a little more detail in the shell.
Fabulous, good job!! :)
On the edge if this fits in as an abstract but that aside, I really like the shot. The overexposed look adds this softness. A very pretty way to capture this shell. Contrast looks perfect.(no vote)