art nouveau inspired piece for the band Evanescence. This poster is extremely successful in blending the two styles of Mucha and rock with a splash of metal. When most people replicate this style they keep the flowery decorative flourishes, but if you look closely the flourishes are actually electric guitars. The colors stand out from traditional nouveau but it totally works in this situation because of the kind of band illustrated.
heaveninawildflower: Manufacture Royale de Corsets by Henri Privat-Livemont (1861–1936). Wikimedia.