I have one cutting started which is already destined for a friend, but he will be growing it on, when it gets a bit bigger I will try to get some more off it. It is a great colour!
Thats Rukizon - often called Kazan in Japan. It has the small pointed diamond shaped leaves right and black tipped stamens. Its a nice bonsai subject with its compact growth and small leaves. Tough too. Often shy to flower but you are obviously having no probs there