Complex sentence: She is based on Gwen Stefani, the creator, with Caucasian features of a regular-tone skin, brown eyes, and blonde hair tied in two side buns decorated with a black headband.
Split into simpler sentences: She is based on Gwen Stefani, the creator. G has regular-tone skin, brown eyes, and blonde hair which is usually tied in two side buns decorated with a black headband.