It's a 3D modeling and rendering application. It's similar to Maya, Lightwave, 3D Studio Max, and whatever other programs you can think of. The only difference is it has a much simpler and user friendly layout. It's much more fun than using 3dsmax in my opinion, but thats mostly because I don't have the time or energy to learn how to properly use 3dsmax.
One thing that I noticed is that the yellow textures along the side look a bit too blurred, which takes away from the overall clean appearance of the image (it also looks somewhat out of place in my opinion). In any case, this is an incredible work of art.
Yes, but its not as complex as it looks... Its only 50 or so rectangles in total and I made one small chunk of rectangles and just multiplied it and placed them on along the sides of the box. The box has the mirror texture, so it gives the effect that the box is much longer than it really is