Where the upper 'handlebar moustache' elements of the wing attach to the nose, the shape would seem to me to be one that would actually produce a small amount of lift
I too noticed this. But upon further examination of the top view pic & front view pic it seems the point of attachment to nose
a) is quite narrow & not wide enough to produce any substantial lift
b) has zero angle of attack (neutral) to oncoming air
Therefore they've just kept the attachment point away & off the wing below to remove any air flow disruption there.
It's quite possible that the brake ducts are more designed for downforce than brake if you know what I mean.
No, not sure what you mean.
Yes, the ducts are bigger compared to others, but they may be running "hot weather Auzzie ducts" while rivals are running "cool weather" ducts. The ducts seem to be pointed down towards the corner of the front wing to capture air vortecies produced there. Not sure if my terms are correct.
At least they are trying different aero solutions...unlike conservative route like Toyota. It'd say it's similar to a driver trying to improve position, pushing the limits of car & wiping out once in a while as opposed to playing it safe to finish where he is.