The Great Wall Of China tower

A tower segment in the Great Wall Of China.
Contains joiner piece to attach to other objects (such as walls) to make a custom wall based on the users choice. Works a bit like a jigsaw. There is currently one wall segment available, however more will be uploaded at a later date.
Great Wall of China straight wall: http://www.thingiverse.com/thing:1074655
Any tips or recommendations are welcomed