Wow, interesting idea.
You may look into changing the angle or moving the mirrors. Frankly, right now, the composition is a bit distracting. Your image has become less about the pen and more about 3 pens and the hard lines that the end of the mirrors create. It seems if you could downplay those hard lines, and somehow improve the contrast of light on the pen, which is very nice, you might be on to something. You might set the pen on a little pedestal that hides the bottom edge of the mirrors.
If you change the angle of the camera, you get away from a one point perspective, which tends to make a static image.
I think you have a real interesting idea. It's not quite there, and you probably don't have as much control staging the image as you would with 2 or 3 images, but it is a real intriguing idea. Keep us posted on some of your experiments.