Mimo wrote: I would guess it is some kind of prunus not a willow, just styled like one Clicio.

Yes, it is an Ume, weeping style.
But there is no need for training the branches down, it's a naturally occurring plum tree variety in Japan:

herbonsai wrote: I don't think my willows will die easily,as New Zealand winter is very mild.Anyways are these any other styles that i can do for it?

we have very mild winters here in southern cali and my willow still has die backs every year. i have to especially watch out for leaf scorch, it does not like intense mid day sun.