looks very nice, glad to hear your enjoying your new purchase
the little circle is the towing eye cover. you may be able to find a different one in the same colour but is only plastic and comes off easy. without taking it to a body shop, i dont know if youd get a good match. a can of ptouch up paint may be ok? ive used them before with varying degrees of sucsess (didnt quite match my brg 75, but matches my silver focus)
alloys can be done easy enough, plenty of places so no worry about them.
looking very clean anyway, no doubt you will look after it