The Zen Art

I recently lost my StoFen clap-on type diffuser and based on advice on forums, ended up buying one from lumiquest (this model).

I took the following test shots with it, it does look better than the Stofen. In fact the clap-on kind diffusers probably don't do much since they hardly increase the size of the light source. This one on the other hand does diffuse some light.

Any comments/opinions on lighting?