i see acro/sps on top, acans on bottom. Lets start with your overall goal. What are you looking for in longer run? Which ones are your favorite corals, what growth pattern you are seeing.
I would start with few broad guidelines..
1) evasive, encrusting hard to remove species should be isolated.
2) Coral aggression is a big pain in longer run. So locating them in a way that the natural rockscape and shading from each other control their growth is a good strategy
3) Looking at how its currently, its not bad, pretty classic mixed reef style. I'll need a close up pics with major corals in each region and their growth speed for more specific recommendations