A few questions about the Lumia 920

I've been looking around for reviews of the Lumia 920. They are generally pretty nice, with app selection, size and weight being the main cause for concern, especially for the folks over at Gizmodo, but app selection will fix out over time and I think that the issues with the weight are really overblown.

The camera seems to give multiple tones in daylight photos and that seems to be a reason for concern, since the camera is one of the main reasons why I was attracted to this device. Reviewers also mention varying exposure and general inconsistency with photos, but that is only with auto mode. Still, if any owners could post full-sized daylight comparison photos with competing devices, I would be greatly relieved. Even a link to a site displaying these will be greatly appreciated.

Lastly, one of the major concerns with me regarding the Lumia is the lack of expandable storage. I mean, sure some people say that even half of the allocated 32 GB is more than enough for them, but sadly I'm not one of them. How much of that does WP8 eat up out of that? Also, does WP8 itself support USB OTG? I know previous Nokia hardware has had support for it, but does this one? I looked everywhere for this one bit but cant find any information.

Any information on these matters will be highly appreciated.