Photography "community"

Took me about 7 days (the irony) to create a small community page from scratch. This page will serve me and a few friends to share images between each other without needing to publicly share them.
The community will be behind closed doors and there will be no open registration.
When I started coding this last Tuesday I decided to start from scratch, thought it would be some good php exercise.

What I've done so far:
- MySQL class (takes care of all db related things)
- Php template engine
- Image upload, edit, viewing, commenting and adding images to "favourites"
- exif extraction
- Image galleries, creation, edit and listing
- User, user creation, edit and three different user levels
- 100% language support
- User profile creation, edit
- Javascript image browser
- Private messaging