Lol, thanks. Hard to explain but basically put the large rocks in first, had some nice flat surfaces to stack onto and just built up from there. Found rocks that would fit together, etc and kept stacking. The at the end i took small rock chips and smaller pieces and just dropped them all around the base of the bigger structure to provide a "rubble" look to it. While they did fit together in the whole setup i tried to place them haphazardly as they might look in the wild.