Now up on marketplace for your downloading pleasure. These are available for 100 points per pack in all Xbox Live regions:
PLUS There are six new ‘Tomb Raider’ themes for purchase:
Tomb Raider Theme Bolivia
Tomb Raider Theme ConverArt
Tomb Raider Theme KeyArt
Tomb Raider Theme Mansion
Tomb Raider Theme Abstract
Tomb Raider Theme Karima
These are available for 150 points per pack in all Xbox Live regions.
Edit: Some folks are confused: The picture packs are 100 points each. The Themes are 150 points each.
Edit: Added the Picture Pack 1 graphic. Thanks for the catch Bill!