This figure papercraft is Roxie (Homika), the Gym Leader of Virbank City's Gym, known officially as the Virbank Gym, the paper model was created by javier. Roxie specializes in Poison-type Pokemon. She gives the Toxic Badge to Trainers who defeat her. There are 53 parts on 7 sheets of paper.
In the game, Roxie appears in Pokémon Black 2 and White 2 as a Gym Leader. She is a musician who plays the bass guitar. Her Gym is a music club. Trainers who defeat Roxie will receive the Toxic Badge, along with TM09.
Before the Gym battle, Roxie is seen in Virbank City outside of the Pokémon Center, arguing with her father about him becoming a movie star. He defends his wishes by commenting that Roxie balances her duties as the Virbank Gym Leader, and as a member of her rock band. He leaves, and Roxie gets angry and heads for the Gym, which the player can directly challenge.
After the Gym battle, Roxie can be seen near the port with Hugh and several of the Team Plasma Grunts. After the battle that follows, she gives the player the HM Cut and then heads back to the Gym.
Roxie later makes a brief appearance after the player competes in the PWT for the first time, expressing an interest in competing in it. Roxie does indeed compete in it later, along with most other Gym Leaders. In the summer, she visits Cynthia in Caitlin's villa in Undella Town.
In the anime, Roxie appeared in Rocking the Virbank Gym! Part 1 and Rocking the Virbank Gym! Part 2. She is a powerful Gym Leader, defeating everyone who dared to challenge her with only three Pokémon. When Ash arrived at her Gym, she was thrilled to see his Pikachu, as she too had a Pokémon originating from Kanto, Koffing, and happily accepted his challenge.
Roxie proved herself to be a very capable Gym Leader, defeating five of Ash's six Pokémon despite being at a disadvantage in terms of her party. She would occasionally perform a riff on her bass during the battle, and the crowd would chant her name. When she was defeated she happily congratulated Ash as the crowd cheered for his victory, and she presented him with his eighth and final Unova Badge, the Toxic Badge.
Roxie appeared in a flashback in Curtain Up, Unova League!. She also makes a cameo appearance in the credits of M16. [Source: bulbapedia]