jxh2154 almost 10 years ago I'm guessing an idolmaster_2 tag is in order, but I'm not 100% sure because a lot of the characters look the same. The biggest changes are Ami, Mami, Azusa, Ritsuko and Makoto.
FeKa almost 10 years ago Iori and Miki both have a new style too. Also, you should implicate idolmaster_2 to idolmaster.