Dave,
I finally got to see your site, after looking at Dulany's site first. His was easier, because he provided an active link on his post!
There is no doubting the quality of you portfolio and you have your subject matter nicely grouped. However, in my opinion, your marketing material needs to be clearer and larger, Prospective customers, especially the elderly, do not need to struggle to see what you have written. Most of them will not bother. I also believe that you need to personalize your intro page more with a banner heading or logo. Without this, the intro is too similar to the opening pages of all us private users in out home albums.
You have got the goods - now sell them!