On the first Alternate Costume Galore entry, we have FFIV and FFVII on the spotlight! On the latest scan, we have more costumes for FFVI and FFXII!
For FFVI, we have a better looking Amano Terra and Kefka! It seems that Terra wears a costume similar to Celes Chere from FFVI, which cause me to mistaken her as Celes in an earlier scan (Which all fans agree the contrast to Terra's element) and Kefka's costume is quite similar to his Amano alternate costume.
For FFXII, Gabranth wears Basch's first outfit in FFXII as well as a close look at Vaan's Amano. What's also cool is that if you look at the gameplay, you can see Vaan using a gun!
Source: XenonVincent777