Magical Girl AI Music Thumbnail

for{argument name="brand name" default="Sousaku AI"} Create a bright, highly saturated anime YouTube-style promotional thumbnail with a magical girl music theme. Two adorable brown-haired magical girls sit side-by-side in the center of the image, both smiling with their eyes closed, sharing a pair of wired headphones and listening to music playing from a smartphone placed between them; the phone screen displays a color equalizer with playback controls. The girl on the left wears a yellow and white ruffled magical girl dress, adorned with small wings, star decorations, a yellow bow, and a miniature banana-shaped crown, hinting at a banana-themed variant; the girl on the right wears a pink and white ruffled magical girl dress, adorned with a blue ribbon twin-tail bow, a star brooch, white gloves, and soft angel wings. Use a glossy, idol-anime rendering style, ensuring large, sparkling eyes even with closed eyes, complemented by soft blush, delicate ruffles, ribbons, and subtle highlights. The background features an explosive rainbow concert fantasy design, filled with neon gradients, flashes, starbursts, glowing musical staves, and three main sets of music-themed icons: oversized musical notes scattered throughout the image, a grand treble clef on the left, and speaker/headphone graphics on either side. Colorful waveforms and equalizer bars extend horizontally behind the character, with a row of piano keys along the lower left edge. Four clearly visible text elements are included: a large Japanese title at the top.{argument name="headline text" default="♪AI-generated music♪"} It features a thick white border, a dark shadow, and a gradient fill from pink to yellow to blue; a small handwritten Japanese slogan is located near the bottom left corner.{argument name="tagline text" default="Enter the world of music♪"} The large curved ribbon at the bottom is the title.{argument name="bottom title" default="Sousaku AI"} ; and the circular white logo badge in the upper right corner.{argument name="logo text" default="Sousaku.AI"} It features a small red origami bird icon. The composition is adapted to a 16:9 thumbnail, creating a strong visual impact with high contrast, dense kawaii visual effects, and an ad atmosphere generated by celebratory music. The layout is clear and easy to read, with no white space.