The default blends well with my avatar too.
Had a look at your avatar in the black rain theme, and it does look good.
Most avatars look great in this theme.
Had I chosen for this in the beginning, I would have been hooked. But now, I2 doesn't feel like I2 looking at it in this theme.
And I don't like the background in the shoutbox when it is a big newsfeature that gets shown.
Maybe one day I will tell myself to use it for a week like Eclair. Not now though.
Smileys look really bright in this theme, bit too bright even. The chocolate smiley looks as if you could eat it though.