Intan was a particularly interesting project as the client had asked for a single-page site with smooth scrolling. Although I'm not a huge fan of this technique, it is particularly effective on this site. It certainly highlights the high-quality of the company and seems to enhance their credibility.
The layout also works extremely well on mobile devices. This site was designed with the mobile screen in mind, and then the layout was adjusted up for larger screens. This technique is called "mobile First" and is best practice for modern, mobile-friendly web designs.