Pilot Fish is an elegant portfolio theme with minimal design, featuring one custom post type to highlight projects and work, and parallax scrolling on the front page to display a featured image. Responsive layout makes it easy adapting to mobile devices. Also supports custom menus, post formats and available in Japanese and Spanish.
Here are some screenshots for the responsive display: (click for a larger preview)
Portfolio Page (desktop & laptop display)
Portfolio Page on iPad (Portrait)
Portfolio Page on iPhone
Blog Page on iPhone
Blog Page on desktop & laptop screen
blog page on iPad