Not bad, but not as good as your piano pieces.
Let me start by saying that no-one outside Germany can do electro metal well :P
I'll be honest, I hated the high-pitched chorusy bit. Also, you don't get that many urban-metal-fuelled chase scenes.
Its got a great bassline though, but I think it needed a heavier rhythmn to bring out the full flavour of the guitar.
Please don't let me put you off doing rock, its just that here you tried to combine rock with something else altogether....