As someone else said in a comment, this makes me dizzy! I love the perspective, the feeling of something above me towering into the sky with no end in sight. That sense of infinite continuity is made even stronger by there not being any discernible bottom to the viewer's point of view.
I recently saw a video of men climbing huge aerials to repair them and it made my feet go all weird and tingly. This picture has the same effect, which is pretty damn awesome for a still image.
The composition is great and you've approached a much-photographed subject from an interesting angle. You certainly seem to have a knack for that, judging by the thumbs in your Artist's Comments.
My only suggestion would be to allow some of the definition in the sky to show through. The first thumb on the left has a lovely blue sky, which I think would add to the feeling of hugeness that this image creates. A little boost in saturation, whether in-camera or during editing, could add an additional punch to an already striking image.