It is a finished wall withl splash/aqua wall panels already fitted.
Are splash/aqua wall panels (block, or some kind of synthetic? Im not familiar with that term. From what i just looked up this is just cement board, which is meant to be tiled over, is this what you have? if so are you going to tile over the board? Again the plastic anchors is the way to go to mount it.
No the wall boards are a finished product. So no tiling needed.