Well I like the green plastic thingy. I think without it the picture would be rather ho-hum. Other than that I can't really say much about the aesthetics.
I do have a technical criticism though; the shot looks wildly over-sharpened.
Thanks, everyone. I'm mainly interested in what people think of the composition, but any comments appreciated. When I saw these elements, I liked the lines, as well as the semi hidden detail in the shadows, including the oblique lines mirroring those in the wood. I also saw an eye (green thing), a nose (point of the wood), and a mouth (barbed wire- maybe even some snaggly teeth?). I hope that doesn't sound like I'm trying to be clever- I didn't take it past "hey, that's kind of funny."
Ed, yeah it does look way oversharpened. Even using a tilt/shift lens (at max tilt), I had to use focus stacking to get what I wanted. I actually applied no sharpening whatsoever to the files before or after blending. I'll probably need to play with the settings of the program (TuFuse Pro) to address this super crunchy look. I even tried some negative clarity in camera raw, but that didn't work.