Looks great! 8D I love the rocks.
Just remember that the leaves of a lucky bamboo plant need to be out of the water. :)
The Lucky Bamboo is a bog plant, and needs to have at least the leaves exposed to the air.
Sad to say, but all leaves under the water level will eventually rot.
If you need a taller lucky Bamboo, try checking out your local nursery/greenhouse. :)
Mine sells them in several different sizes, ranging from 6 inches to 12+ inches.
I'm not sure if pet stores sell them in different sizes.. My local Petsmart only seems to sell them in one size.