Create a 4k concept art for a 3d animatic movie poster. the poster should depict a young boy wearing a blue t-shirt and blue shorts, accompanied by a friendly, minimalist robot who is holding the boy's hand. in the background, there should be a larger-than-life smartphone with a chat conversation displayed on its screen. the room where this scene takes place should resemble a child's bedroom, filled with various toys such as soccer balls, tennis rackets, bicycles, and more. primer plano del niño y su amigo robot