Design a clip art-style image that merges the visual elements of an open padlock with a muscle. the muscle should be the main body of the artwork. at the peak of the muscle's curve, where it bulges the most, integrate the shackle of the open padlock. the body of the lock should subtly blend with the lower part of the arm. the keyhole should be visible. emphasize clean lines and simplicity to ensure both elements – the muscle and the lock – are clearly recognizable. black and white.