Just want to share this information with you guys:
I submitted my 485/765/131 one month ago, and got RFE for 765/131. USCIS said my photos are overexposed and asked for new ones. The old photos were taken by digital camera at CVS, since they didn't use flask to avoid the shadow, they adjusted the brightness during printing. The whole photo looks a little redish.
I just took new photos in AAA, they also used DC, but the flash. the printed quality is much better (though more expensive. CVS charges $7 for 16 passport photos).
Hope this information can help you.