Marine is a very professional yet super-easy to use theme, here is some key features of Marine: 4 Main Layout Types. Tons of Shortcodes with a lot of variations. Fun, Super-Easy & Flexible to use. Powerfully Responsive. Many options for Shortcode Usage: Page Builder & Shortcodes Manager & Shortcode Lists Pack
Demo: http://themeforest.net/item/marine-responsive-wordpress-theme-multipurpose/7741798