I like it. Informal, several plants without looking like "one of these and one of those, and one of something else". Nice end of wood showing!
GBR breed on flat rocks that are lying on the substrate. I would add those, just for the fish. If you have several pairs then spread out the rocks so that each pair can be as far away from the others as possible, and hidden, if possible. That might mean moving the plants around.
For 3 pair, for example, I would keep the ends of the tank open, and put a rock for each pair there, then some plants to screen off a 3rd area in the middle/front of the tank.