Gwen Tennyson Bikini png by MrMenRaymanFan2001 on DeviantArt
Gwen design in the earlier season of alien force to ultimate alien, where she use to look more feminine with a smaller jaw, rounder eyes before she turn to Ben with lips. :
Gwen Tennyson Ben 10: Omniverse Ben 10: Alien Force Vilgax, maisie williams, celebrities, mammal png | PNGEgg
Ben 10: Alien Force Photo: GWEN IN BEACH | Ben 10 alien force, Ben 10, Ben 10 and gwen