I really like it. Great Photos they are very striking. It is also very easy use.
Since you asked for feedback and I was an Art minor in collage and learned a lot about art critique here is some constructive feedback. Even if you do not change anything I still really like the site.
The only area I think could be improved is the available page.
1. Have a separate link on the available page for clutches or animals no longer available.
Personally when I am looking at sites for snakes I get frustrated when I got to the available link and have to scroll through pages of no longer available animals to find what they have for sale. Even worse when I put the effort to scroll and they don't have any available.
However I do see the value in putting up information on some of the past animals you have breed for reference. If you can't make a separate link then put the sold animals at the bottom of the page, with a banner above all sold animals stated they have been sold. Available animals should show up first.
2. Include pictures of the animals on the available page.
This is a draw even if they are only pictures of the morph and not the actual animal, however that should be noted if that is the case. This would really help with the animals already sold. For the incubating clutches pictures of the mother and father would work. You could possibly list the morphs the could appear from the clutch.
You may want to start an e-mail database so that people can sign up to receive e-mails when you get new animals available. It is great free advertisement.
Overall GREAT web design. Very professional.
PS.
I love the light box. I am going to have to make one of those. It really made some GREAT photos.