Winter tires on and get excessive camber? rust on rotors?

[KL3]

Hi all,
Two things, my camber on the rear wheels and rust on the rotors.
I had winter tires installed at beginning of November and I noticed that there was some obvious camber on my rear wheels. I didn’t really notice if there was camber with the all seasons on (not sure actually). Both rear wheels seem to be symmetrically cambered. The front wheels seem to be okay from what I can tell.

Is this natural camber? After looking at my friend’s, gf’s 3’s, and other 3’s on the road I’m trying to convince myself that it’s normal (does look similar if not the same). For some reason I just noticed more with the winter tires on. The pictures directly behind the car make it look somewhat extreme, but my friend saw it the other day and said its actually not that bad (also looking the angled pictures)
Some pictures below.


Right Rear Wheel



Left Rear Wheel





Second thing, I also noticed some rust on in the middle of the centre piece of the rotor (?). Over the past 3 weeks the rust seems to be getting worse, what are my next steps? Are there centre caps or something I can cover them with? Or buy hub caps for the whole wheel? From what I read there is suppose to be rust and that it's normal, but it seems to be a lot of rust developing from when I first put my winters on to now. Just wanted to make sure.
Right Rear – beginning of November



Right Rear – Today


Front Left – Today