Illustrate a rock 'n' roll octopus playing drums, gripping the drumsticks at the ends of its eight tentacles--absolutely no human hands or fingers. The octopus should be wearing steampunk goggles and a rock 'n' roll-style hat, radiating energy and attitude. The design should emphasize the octopus’s rebellious, musical nature, drumming with intensity. Set the aspect ratio to 2:4, making the octopus the dynamic centerpiece of the image. Focus on its tentacles holding the drumsticks naturally without any human-like features