This will be the last update before the final photos, although it’s pretty much done now!
What I am looking for is some advice, as I feel that something is missing. The whole scene is not quite there. Also, I have no idea where to place the upper portion of the destroyed arm or if it should be included at all. Any advice from a fresh pair of eyes is appreciated!
I don’t think it is missing anything at all. The positioning of the elements in your second to last photo is, I think, the best. That way you kind of have something to really draw the eye onto the groundwork at pretty much all angles.
That was my thought as well. I feel like it is a little crowded in the background and a little empty in that spot you mentioned. I was a little apprehensive because it might block the water a bit, but it shouldn’t be too big of an issue. I might still put it at an angle and cut a bit of it off.