Looks crispy sharp to me. I guess you know this but sharpening *after* you have resized the image always leads to very sharp results, especially for websized display. If you use Photoshop CS2, there's this thing called smart sharpening. It is much better that "unsharp masking" or the traditional sharpen-filter (worst). If you know this all already - my apologies.
By the way - cool image! Could be improved by cropping out some of the lower part.
Regards Dietrich