It's a little to ...spacious... for my tastes. I find myself distractedly scanning the page, searching for meaningful content. On my 1024 X 800 monitor, this should not be so much content to cause a vertical scrollbar, -but one is there and it conceals some rather important stuff.
And the "SEARCH" field is kinda 'buried' where it is and not intuitively located, imho. I might suggest a more prominant location, size, prominance or highlighting. The SEARCH field should have some quality of being lifted above the page-field. Something to provide greater focus on the crown jewel, the purpose of the site, which seems a bit lacking save for the image branding.
If you have Firefox and 'turn off all images', the page shrinks to about 2/3rds the height of my 800px-tall monitor, which feels more comfortable for the shown content. While I have only mild vision issues, I am at the computer for hours every day and this site tires my eyes rather quickly. I'd likely not linger here more than a few seconds if I were tired, anxious or fast-pressed to get on with the business of SEARCHing.
I like the simplicity of the pin image. I would kick it up a notch and position it to display maybe the top-half or top-third of the pin 'outside the lines' of the container and maybe biased to the left one-third of the page. The site is a bit too 'linear' (defined in squares & rectangles). I would almost expect to see TABLE layout here (-I didn't view your code, however).
Design-wise, it looks okay. "Clean" is the popular term and that can't be faulted. I certainly am an avocate of generous use of 'white space' but this is like what my printer does when it runs out of black ink and I have to 'faux' shades of super-dark gray of the 'color cartridge' in lieu of genuine-black to print-out draft reports... -The result looks overly Spartan, ghostly and wanting for more... :o