1. As of now, they're "flapping birds" (but they probably don't flap)
2. I would change the name of the model. I think something more along the lines of the cranes growing out of a plant. Like a "crane tree", "crane plant" or "growing cranes". I just don't see the balancing aspect.
Very nice model.
Do you think would it be possible to make two balancing Kawasaki-Roses after the same principle? I would be very interested in seeing the result.