thanks a bunch Momotaro! I really appreciate the constructive criticism, one set of eyes just isn't enough to properly judge a hardscape. I can't seem to understand what you mean by the "circle" though.
The crab thing is very funny

, I'll move the sticks around a little bit to make it not so distracting.
I had an awkward feeling about the piece that ran up to the top even before you mentioned it, and I'm still trying t figure out a way to fix it. Thanks
About the circle being centered, I know what you mean

. Also I went upstairs to try and move the whole scape to the left and it just wouldn't budge. I'd have to redo most of it to get it over a bit, and I don't know if I'd be able to get the same result.
But please, do explain further about the circle, I can't seem to see what you mean. thanks so much for the help!!