Looks like a revered statue from minecraft or something on the last panel.
I started reading Locke & Key the other day. I tried jumping in half way through, but I really had no idea what was going on. So I decided to give it a fair shot by starting at the beginning. It’s really quite good! If you were thinking about buying comics and didn’t know where to start. Or if you finished Y: The Last Man and Fairytales then I think this is the next one to move on to.