Our previous look at the bonus Nendoroid figures Compile Hearts is including with Neptune Mk2's limited edition was through some concept images. Today, the game's official blog shared the final items:
That's Nepgear (Purple Sister) to the left and Neptune (Purple Heart) to the right.
Here they are from the back:
Neptune apparently has the N mark on her backal area, but it's tough to see in the image.
Here they are from a different angle:
And here's a shot of Nepgear the blog calls "sexygear."