This is an excellent example of highlighting a photo via the use of color and Black & White contrast. The "busy" background recedes in importance, leaving the main subject without competition. Visit more of pixx0ne's photos by clicking on the photo or his name.
I recently had over 200 photos in the top 500 each day, also called "EXPLORE" on flickr. The algorhythm keeps changing, so it's different all the time. Here's a link so you can see the current top-viewed and most favorite of my photos: