Design a poster that features a female character with a mix of human and anime elements, dressed in a vibrant, futuristic costume. She stands in a dynamic pose, with her hair and clothes flowing in the wind. The background is a swirling vortex of colors, with subtle hints of technology and innovation. The International AI Art Competition title is written in a flowing, cursive script at the top of the poster, with the tagline "Where Art Meets Technology" written in a smaller, yet elegant font below. Apply a Duotone effect to enhance the colors and contrast. Incorporate a subtle motion blur to convey a sense of dynamic energy.