9.5/10. The images are great, odd that the butterfly in details is so much lighter than everything else though. The body background makes excellent 'borders' and you make excellent use of it behind transparent sections (especially the about section) but as a tile background it's pretty plain.
It's a bit strange that the top border and left border of all your sections are darker than the bottom and right ones. Not really noticeable though.
Here's a link to how it displayed in my browser:
http://img235.imageshack.us/img235/83/jadethfox5da.jpgI didn't like the background images for the commenter avatars, I loved the yellow in the main images so I think I'd like a background image with some of that colour in it more.
The header titles are plain but blend in kinda well, so reasonable.
Also, I think adding:
.caption:before, .caption:after, .caption2:before, .caption2:after{ Display: None; }
would be a temporary fix to the white corners in your comments messages.