The assignment this week was about black and white. The secret is starting with a decent picture to begin with, especially one with good contrast. Sometimes the color is overload, but turning it black and white makes it timeless and elegant. The black and white treatment made this shell positively luminous!
Someone suggested in the comments that I turn the picture from the Whisper post into black and white. It worked marvelously!
Here's the image I started with from 2 weeks ago.