Hi Jason!

I took a look at your site. I also searched Google for what I supposed were your most obvious keywords, and found your home page and links page at the end of results. It appears that you are a recipient of the -950 penalty. It is much discussed but as yet poorly defined. Theories abound, on several possible causes, such as over-optimization. I doubt it is much comfort, but you have some very good company down there; authority sites.
You have a challenge shared by all sites that are mostly image-based. Try to increase text content wherever it makes sense. This is a two edged sword. DO ramble on about your work, but write in a natural style. When text content is thin to begin with, it is very easy to overdo keywords. For example: Page Home4 is trying hard to get the keywords photograph and New Zealand noticed. It could be more natural, with less repetition, and it could be longer.
Your backlinks point to your / (index page) which has a splendid photo but is devoid of text content. The text content one would expect to read there is on your home4 page. Since that home4 page doesn't seem to have links going to it from outside, I suggest you pour the text from home4 onto your / page below the photo. (Always consistently link to /, not to index.html)
What then to do with home4? You would delete the text content from it (so there would be no duplicate content issue) substituting a sentence about how this page has moved to (link to /). After it has been indexed this way (could take a while) you'd have a choice to make. You could leave it up; 301 redirected to /. Or, if it has no outside links pointing to it, it wouldn't be radical to simply delete it (as in 404, not found). It would take a while to be dropped from the index, but since the last version would say "moved over there to /" that wouldn't be a problem.
Other than consolidation and making pages more text-rich (but not keyword dense), you could re-examine your links out. You have a lot of them. IF you discover that any one of those sites is openly selling links, either don't link to them, or nofollow your link. IF it were the case that your links page had little traffic anyway, you would have a choice to delete it. It is not passing any notable PR. Your log can tell you whether it is cobwebby, or a busy hub.
Do a search for "-950" for more ideas.
Good luck to you.
One more thing- There are some reports of sites that bounced back after making no changes.