Just a suggestion, but make 2 smaller rock structures from the big one you have now, because it currently looks like a change in habitat, and maybe move some of the driftwood to the left side. If you only have one piece of driftwood however, put it in the centre. This might just help balance it out
1. fill the back with plants, not just the right side.
2. Put the rock structure nearer to the middle and 2 smaller rock structures on the right side, near the large rock structure.
how about buy some love and mux them with the fake?so theat you only have half the amount of plants to look after. (thats what i do anyway )and plant the back and sides as well as one side
the slate looks amazing though.
it looks like mine