the one on the right is slightly scaled down and has a less prominent jaw, so it’s probably a female character.
great way to tell as they still use the same model 
i can understand that having just one model halves the work for texturing, clipping etc, but it still looks cheap.
now as for “premium edition”: so the basic class costs 12 € / $ and the “premium” version is with these added skins, for more money i guess?
ah , i see: Comparison between DLC class prices of VT2 and DT