Seriously? I've got the automatic upload to Skydrive app for my N8 and have it set to full quality over WiFi only. Pictures uploaded are perfect. Same setting on my 920 and pictures are horrible. Besides, just viewing the pictures on my phone shows how bad the pictures are.
I've set my lumia to up-load full quality as well, still doesn't work, at least there is a large disparity in file size.
Its because it uses the same algorithm which makes that amazing low light photography possible, for daylight photos as well.. I guess they have no way to automatically switch between two differents sets of processing (day/night) so they just left it as default. They should at least give you an option to manually select "day" ...I cannot imagine why in such good lighting conditions the image is so heavily post-processed to remove the noise.
I done a quick Google about the 920's camera to see if it was just mine that took out of focus shots and the result seems to be it's the phone in general. There appears to be much work needed to get the camera to focus on the whole image.
Nokia Lumia 920 Camera Review: Connect