what kind of tree coral is this?

[Purple Penguins]

so a local reefer and I made a trade, I traded her a small leather coral and some macro algae for this tree coral, I have never had one which is kinda silly since its normally a first coral for most, the leather I traded her was a frag like the leather in the lower left of tank in the first pic, unsure of what kind of leather it is, the polyps are yellow/green but the main body of the leather is brown, as for the tree also have no idea what kind it is. any help would be greatly appreciated..