This looks good.. very clean and recognisable, especially in thumbnail size.
The only addition I can think of is a hint of the Anime-style drawings, but I am not sure how that can be achieved without cluttering the design.

The Reverse of coin

I don't think branding Animecoin as a "bakunyuu coin" is the proper way to promote the coin. Animecoin was designed to embody the spirit of anime and the anime community. As such, we should focus on the more respectable aspects of anime and not... that.