Minimalist black silhouette of a woman against a pure black background. The silhouette should be in side-view, holding a megaphone to her mouth. No facial features, just small clothing details should be visible, just a solid black shape. A large, glowing green circle floats behind the silhouette, providing the only contrast and light in the image. The composition should be stark and dramatic, with clean lines and a strong graphic quality. --ar 4:7 --v 6.0