Those blothches that look like fingerprints are the outlines of the individual beams of light let off by the individual LED diodes forming part of the cluster - in the headlamp unit there is not one LED bulb but a cluster of multiple each contributing to form the overall beam.
That's what I was going to say. Think back to the first ones on the A8 where there was a whole array just for the low beam that basically used up the entire width of the headlight. It's the same principal here I imagine, just that it's shrunk down and further back from the forward-most glass of the headlight so you can see the individual beams.