I saw a similar shot somewhere in this challenge but this one is so much better, the other one was almost black. Anyway, great shot, great angle and I love the colours in this one.
Processing has given it a computer generated feel which is either too much or not enough. To give it more of a 'poster art' feel I think you need to remove the distractions in the background (e.g central black square blob and stylus arm rest) to keep it to just the bare essentials