@VTArgyle it's not just tanlines, there are some other small details too like the bow on the back of her top. on top of that, the figure at the bottom comes more or less fully assembled but the top one you have to put together/glue yourself.

assemble heroines does this a lot which is cool, because it means you can get some pretty good quality figures for a lot cheaper, especially if you actually know how to paint them. i bought the one without tanlines because it was more affordable and i wasn't too worried about putting it together, but i didn't paint it because i was worried i'd ruin it.