I think the site looks very professional which is a big plus especially since you appear to be targeting offline businesses and institutions. The link mentioning Harvard connections definitely adds some clout to the site, indirectly. Navigation seems easy and smooth. Pages loaded very quickly for me and I'm on dial-up so that's saying something.
I think your clients' websites are more interesting that your own. A design studio, in my mind, should be able to stand out with originality. Unfortunately, I don't see any originality in the look of your site. Yes, it is clean and to-the-point, but it resembles one of those free templates you can find anywhere on the web.