I agree with other comments you need to change your wording on the home page. I'm not really sure who you're pitching this to, but if it's to a non-technical crowd you need to simplify it. It would also be great if you made a page with examples of how to use OpenPhoto, because there seem to be many possibilities, but reading the home page didn't make me think of them.

That being said, I majored in Game Development and I could definitely see the artists in the program using this for their portfolios. Most of them use Deviant Art portfolios (http://portfolio.deviantart.com/) which is not fully customizable and doesn't look very professional. Some of them bug a technical friend to help them make a real site but then it becomes hard for them to maintain it on their own. There are artists at my schol who make their own site, but it is a small group, and an even smaller subset of them have NICE looking sites.

EDIT: Oops, typo.