Sepia Anime Chamber Trio

Create a square anime-style album-cover illustration of ensemble_name performing in an ornate antique salon. Show exactly 3 seated musicians: left, a brown-haired cellist in a black suit playing a large cello; center, a silver-gray-haired violinist with a long braid playing violin while seated slightly forward; right, a tousled white-haired violinist playing violin, seated at a slight diagonal angle. All three wear formal black suits with white shirts and dark ties, refined slim silhouettes, serious focused expressions, and delicate bishonen facial features. The room should be a richly decorated European vintage interior with tall bright windows on the left, lace curtains, patterned wallpaper, carved wooden chairs, a mantelpiece, candelabras, framed floral paintings, vases of flowers, ornate trim, and a patterned carpet. Use a sepia monochrome palette with warm beige, brown, ivory, and black ink tones, high-detail manga linework, painterly shading, dramatic soft window light, elegant shadows, intricate instrument wood grain, and a melancholic chamber-music mood. Composition should be intimate and cropped close, with the cello dominating the lower left foreground, the two violins angled across the center and right, bows forming strong diagonals, no visible text, no logo, no watermark.