I am Jay, Art Director and Concept Artist to this just-released app game "Ironkill".
My story behind the robots -- The name "Loli" is from typical Japanese cartoon girl images, those girls usually have cute baby-fat faces with curvy body lines. The most significant symbols to be "Loli" are slightly big head, petite body size with big breasts. I colored her pink to emphasize the young age, however I put death in her mask and weapons.
Size isn’t everything because Sunshine Girl aka Loli has speed and agility on her side. She slices apart her lumbering foes with her blade fans, AND looks cute doing it.
Concept art designed by me, Jay Wong, 3D image created by Ironkill app game official
https://www.facebook.com/ironkillofficial