3 characters concept design and drawing in 2D

Need concept design and illustration of 3 characters in 2D for an upcoming project. - 1st character is a teenage boy, about 13, tall and slim, wearing glasses, brown hair and eyes. He is very witty and fast and has superb soccer abilities. He wears soccer clits, dark gray shorts and an orange T-shirt. He has a special clip on his belt allowing him to carry a soccer ball everywhere he goes. He has a very friendly face and a big smile. He is right handed. - 2nd character is a young girl, about 11 years old, tall (almost as tall as character 1) and athletic. She has green/blue eyes with freckles on her face only, and dark brown and thick hair. She has a very determined face yet you know she is friendly and always willing to help out. Her ability is tennis. She carries a tennis racket on her back at all times and she has a special clip holder on her left leg with 3 yellow tennis balls in it. She wears blue tennis shoes, a blue tennis visor, a dark gray T shirt and orange shorts. She is right handed and has a pony tail. - 3rd character is an 8 year old boy. The smallest of the team. He has brownish hair with a small tint of red hair. He too has freckles on his face. He is of normal size for his age and slim. He too carries a smaller tennis racket on his back and a clip on his left leg, with 1 green, 1 orange and 1 red tennis ball in his clip holder. He is right handed too. The project should include 1 independent drawing for each character and 1 drawing with the 3 characters together, in a "ready to fight" stance with their special abilities as highlighted in the character description.