This illustration is made in Adobe Fireworks:
All you see is pure Fireworks power, all vectors and symbols and live effects!
If you’re curious, you can download the original and de-construct it in Fireworks:
[ download original Fireworks PNG file (6.5 MB, .fw.png) ]
There were some other very good contributions in that contest, too — take a look at the other winners:
…but 1st place is really my favourite!
And it also perfectly shows that the creative possibilities with Fireworks are almost endless! (Some time ago, I have shown a few other good Fireworks examples here:-)
Finally, if you sometimes wonder, is Fireworks better than Photoshop (for screen/Web/UI design), wonder no more! :)))