Have you got any images of your creations? Post them up here and discuss the game here.
In other news the game has updated to 1.7.3 today which comes with a list of brand new features. It's next update will be 1.8.2 Beta and then will be 1.2.5 to be on par with the PC version of Minecraft.
Minecraft: Xbox 360 Edition 1.7.3 list of additions