n0rk
More is better-er!
Mostly Soft corals some SPS.
For the intended purpose you've not really left yourself enough mounting points. It seems the rockwork itself is fairly sheer... when it comes to growing things you're going to have a hard time. Also, it feels somewhat unbalanced, sort of more as though it was dropped instead of placed if you get what I'm saying? If forced to pick I'd say A, but even in it I think it definitely does need a fair amount of refinement to be useful to you and a visually cohesive base to work from.