If you climb up the ladder and turn left, there will be a drop down to a mid level bit of floor. You'll see the statue on your right after dropping down. If you stand on the main level and face the ladder, the drop down will be to your right.

Wait so Im going too far down when I drop down to the bottom level where the ladder is??

Wild guess, you're going down to the bottom level where the door is, not the mid level where the statue is. The bottom level has a ladder that gets you back to the main floor. If you immediately turn left after climbing the ladder and drop down, the statue is in the wall to your right.

I'm playing Gardens of Morr, trying to get the runestone, but the gargoyle body IS NOT spawning?? Even after I've followed guides. Can anyone tell me what's the issue? 

Gargoyle Not Spawning?