I think it's doctored.
Bottom photo: Hibiki is slightly blurred but with more light shining on her than the others, and clips behind Ami. Note how Mami is shown in front of Ritsuko.
Also Hibiki's fingers. Though it may be more pre-production blunder, and will be fixed.
I think you could say it's doctored solely for the fact that it is what it is. XD Hibiki being continuously shunned is not NBGI. The only idols they shun are the 876 ones.
And I think Hibiki's fingers wouldn't be counted as pre-production blunder, but just natural game-clipping. Sort of how Makoto always stands with her hand on her hip, but in the 360 game (and probably SP, too, I don't think you can see her hands when she's standing naturally) it floats next to her hip, not on it.
Because Hibiki does the same, and the skirt of her costume flares out, it clips.