Well they look to have alfa romeo centre caps, but they're not alfa romeo wheels. They wouldn't have dual fitment on OEM alloys. They also don't look like any OZ's I've ever seen either, but thats not to say they aren't OZ's.
I've no idea wether they'll look nice or not to be honest, I'd have to see them either on the car or photoshopped onto the car in order to pass judgement.