Adorable and calm ambience, which is prevalent in this free Windmills Theme, can be used for many blogs with “eco-friendly” purpose. For example, it is completely suitable for your travel agency which main feature is eco-tourism. Even more properly, you can use it for promoting the usage of alternative energy and reduction of pollution. Many of the green activists would be contented with a site with this WordPress theme.
With regard to general appearance, this theme is well ogranized, with two sidebars and plenty of place that you can fill it up with your very own content. Of course, sidebars are totally widgeted, so you have a lot of freedom in your creativeness.