It's very apparent that the layout of the blog has undergone a change. When I started the blog, I felt the brown had an antiquated look, and it seemed fairly classy, but the text column has always been super narrow, even when I fiddled with it in the settings.
I'm okay with light text on dark background, but I know some people have problems with it. At least I didn't go with a garish color on the whole body, or white. Too much contrast would be bad, too.
At any rate, I'm happy with it as it stands now. If you have any questions or concerns, I'd like to see feedback in the comments.