A could work, but the visual rule of thirds could help it out a bit. Leave the bridge but try shifting some of the rocks, so that one pillar is taller then the other. It will help it flow much better.
I'd use masking tape on the glass to divide the viewing panel into equal thirds, both horiz and vert. Then make one pillar reach up to touch the top third and make the other pillar low enough to be at the bottom third.