Social media site Mock Up/UI

Requesting a top-notch, cutting-edge and most up to date social media mock up with breathtaking UI, effects, and ideas etc.. The idea is for this to be a place where people can share pics, send messages, upload images and buy and sell things. The idea is to produce a concept/mockup for the website to take approval and move to the next step of developing the website. Please, have some excellent samples in your portfolio and if possible, add a lot of images and make use of the white-space as well as a mixture of modern and fresh colors sets. This is a mock up only, no coding.. I want the design to be a inspiration of the new facebook.