As a small business owner, I would like to see a Services page with prices, turnoaround time, and other basic info. Your portfolio is very well put together, so I can already see your business' capabilities.
Given the state of the economy, business is slow, I have little money to spare and even less time. I suggest you have your services 1 click away from the homepage, include basics (maybe bulletpoints) of what to expect, along with price and maybe a couple of testimonials.
Lastly, I would edit your "About Us" section on the homepage. In general, I would get more specific to try to connect to the reader (a small business owner.) Phrases like "to work closely" or "help you grow your business" do very little for me. I read them everywhere!
In summary: put yourself in my shoes. I need a new logo. I have a very limited budget for it. And there's hundreds of "designers" on Craigslist or other websites that use language similar to yours. Why should I contact you? The response should be your new "About Us"
I hope that helps!