The following graphics were made during a period of five months as part of an achievement system for returning users. These are a selection of about twice as many. Many of them comes in several levels as well.
The creative brief were basically just a name for each achievement. Part of the assignment was to find a suitable style to fit the rest of the site and still have it production friendly.

The first ones you see here were style tests.

Tools used: Maya and Photoshop