hmm... perhaps the "leather" is actualy a blue ridge coral then? it's a possibility. could you get a better pick of it?
and yeah, the brown things in the first pic looks like it coudl be GSP, or perhaps the metalic version, cause they are usualy thinner. but you could also be anthillia sp. ive seen a lot of times when it growns the polyps remin small for along time before growing out. coudl you please get a closer pic?