I am new at web design, but I freelance in another business and all, I repeat, all of my work now is referrals from other customers. I have been doing it long enough that my clients come to me rather than me having to dig for them.
That being said, as a new freelancer, you will have to be very proative to get clients....You have to get your work out there which will bring in more clients. And yes, if you see a site that could be better, all you can do is ask...good luck Most of all...enjoy yourself!!