Overall it's very simple and clean. Perhaps a bit too much seeing that it's promoting a design firm.
I would incorporate more graphics or visuals on the home page. It looks like a stock photo and a very basic low budget logo right now. I would change both to reflect more of what the customer may expect from the company itself (graphic work etc.)
ON the gallery page you may want to have the large size gallery photo (above teh thumbnails) also be clickable so that teh image pops up in another window in a larger size. On higher rez monitors the work gets lost...it's too small.
Anyways, those are some thoughts. Overall the site works...I just feel if it's representing a company that does art/graphics, then the site needs to be pushed one step further visually.
Hope this helps.
N Fran