What I like most about the desktop UI for Fuji San Day Spa, are the out-of-focus photographs in combination with simple shapes. The colours, typography and navigation-elements form a unit, which works quite well with the one-page-design.
Isometric renderings. Check for more: http://www.proestate.pl/pl/artykul/adalberto/1490/1457.html
N-store website - click for more: http://www.design-pro.com.pl/nixon,56.html