Omni is a high quality, flat and full responsive HTML theme for creative businesses or photographers. It comes with 4 header options, a fullscreen portfolio, a parallax header or a video header and a slider revolution header! Also, the layered PSD design file is included so adjustments are easy to handle!
Demo: http://themeforest.net/item/omni-responsive-one-multi-page-html5-parallax/5082172