really great design!

I love how big the main image is.

the dropdown is lovely and it's very different from conservation.org so that's okay. it's not like you copy pasted it exactly! so every designer borrows in the way you have. no crime.

3 is the best- go with that one!

only thing that might be nice is to add either a "go" button after the search field some people may not know they can just press enter and it will work?! this is real minor as its hard to find something bad about this site!

maybe you can think of something catchier to say than "welcome". me personally I never want to say "welcome". again this is sooo minor and just imparting on you my ideology of what a site should be :) and for the 3 opening paragraphs I'd make the first paragraph bigger bolder maybe a diff. color then switch to the small verdana.

great work!