Not sure of the species but that needs a good feed, get some fert on it soon and maybe some iron stuff too. That is why the leaf colour is the way it is.
I like that form, I can see it working tailored to a tree .
I had been thinking since I saw you post up some cascade pot pics about asking for you one, I have a tree in mind provided it kicks on in spring.
That last Boug I dug, posted here somewhere... it's the only cascady one I have but I reckon it wants a
@sorce pot.
Probably not due for a repot for a couple of years but that is cool, get some growth on the tree and shape and maybe see what happens.
If your up for it I am.