Anime Thumbnail Shared Magical Girl Earbuds

Create a bright, ultra-saturated anime YouTube-style promotional thumbnail for {argument name="brand name" default="Sousaku AI"} with a magical girl music theme. In the center, 2 cute brown-haired magical girls sit side by side, both smiling with their eyes closed, sharing one pair of wired earphones while listening to music playing from 1 smartphone placed between them; the phone screen shows a colorful equalizer with playback controls. The girl on the left wears a yellow-and-white frilly magical girl dress with small wing ornaments, star decorations, a yellow bow, and a tiny banana-shaped crown accessory, hinting that she is a banana-themed variant; the girl on the right wears a pink-and-white frilly magical girl dress with blue ribbon twin-tail bows, a star brooch, white gloves, and soft angel wing ornaments. Use a glossy idol anime rendering style, with large sparkling-eye styling even though the eyes are closed, plus soft blush, delicate frills, ribbons, and fine highlights. The background is an explosive rainbow concert fantasy design filled with neon gradients, sparkles, starbursts, glowing musical staves, and 3 main groups of music-themed icons: oversized music notes scattered through the scene, one large treble clef on the left, and speaker/headphone graphics on both sides. Colorful waveforms and equalizer bars stretch horizontally behind the characters, with a row of piano keys along the lower-left edge. Include 4 clearly visible text elements: a huge Japanese headline at the top, {argument name="headline text" default="♪AI楽曲生成♪"}, with a thick white outline, dark shadow, and a pink-to-yellow-to-blue gradient fill; a small handwritten-style Japanese tagline near the lower left, {argument name="tagline text" default="音楽の世界へ♪"}; a huge arched ribbon title at the bottom, {argument name="bottom title" default="Sousaku AI"}; and a round white logo badge in the upper right, {argument name="logo text" default="Sousaku.AI"}, with a small red origami bird icon. Compose for a 16:9 thumbnail, with extreme visual impact, high contrast, dense kawaii visual effects, and a celebratory ad-like mood for music generation, with clear readable layout and no empty space.