That's not a bad start! It might have a better effect if the convergence point was a bit more towards the bottom of the screen in this one. For macro 3D photography, I'd take the left eye picture fist (as usual) and then move the camera to the right a few nanometers (heh) but not quite the difference between two human eyes. Then I'd turn the angle of the right eye shot a tad towards the left, but not too much. Then take the pic, do the Photoshop thing, merge and crop!