Here are some icons of my Sphere 1.4 icon theme.
The complete icon theme contains over 24.000 icons including softlinks in different sizes for linux systems. But you can also use these icons for your personal systems. I use it also in my smartphone, looks very good.
Here are some folder icons of the theme.
For the hole theme (>160GB packed) please watch deviantart.com (Sphere 1.4) or gnome-look.org. Or write me a message if you want to get the hole theme for a small donation (i want to buy a new monitor and graphic card to build more and better icons...)