I have been taking my Iphone out on my morning walks with MaraBella. It gives me a chance to take advantage of the morning light. This bug was just begging to pop with selective color. I am sure there are multiple ways to achieve this. Sometimes I just find the easiest is to use the magic wand tool to make my selection. Copy the selection. I desaturate the original image to remove color. Then I can simply paste the color selection right back into place.