Time to start trimming excess foam and do the detail work.
1st was the overflow, The foam tends to keep expanding overnight, to trimthe foam use a serrated knife or saw blade, very easy to cut. One of the things I've found is that to keep it looking natural, cut away as much as spossible with a knife and then use your fingers to pinch out small areas, this makes the surface much more rough and textured.
Here is the top of the overflow box, one mistake I made was placing some of the LR over the slots for the overflow, I'm not going to worry too much about it as I can probably use a saw and cut slots thru the LR as most LR is very porous and soft. I had already removed the top portion and cut the overflow slots before these pictures were taken
Here is the top part after cutting away with serrated knife
This is really amazing, you honestly can't see the overflow box from the front of the tank and unless you were looking for one, you wouldn't think there was anything there. Using the gridwork I built the area up underneath the overflow box so that it was totally open and had several caves
Here is the area underneath the overflow, you can see all the caves, still have a lot of detail work to do and some more foam to apply.