My Very First Rolls

Can anyone help me to figure it out?
All the roll became like this.
What happened?
Cause of Aperture? ISO? Focus? Film? Scanning?
Please help!

Fotograf:
nkhoa93
Hochgeladen:
2013-01-03
Kamera:
Lomography Belair X 6-12 Jetsetter (im Online-Shop erhältlich)
Film:
Lomography B&W 100 (120)
Stadt:
Ho Chi Minh City
Land/Region:
Vietnam
Albums:
First Fail