I would look at some other free templates out there that have a little more modern feel to them. It appears a bit blocky and unfortunately bland. The greens for the site and the newsletter do not appear to match.
Look at possibly doing som subtle earthtone colors instead of the dark colors on white possibly. Dont get me wrong your on the right track but you need to play with it a bit, I would suggest building some content in what you have now, then play with other templates possibly on a test page.
Also the link for the template at the base of it is not doing you any good as well.
This game is all about learning and improving today what you did yesterday, keep it up and you will do great.