Ethereal Owl: Wisdom in Ink

Create a realistic tattoo design featuring a majestic owl perched on a gnarled branch, elegantly positioned along the side of the ribcage. The owl's feathers should be meticulously detailed, showcasing intricate textures that mimic the softness of real plumage. Surround the owl with subtle moonlight accents, casting a gentle glow that highlights the contours of the branch and the owl's wise, piercing eyes. The design should be medium to large in scale, allowing for ample detail without overwhelming the ribcage. Utilize a monochromatic color palette with shades of deep gray and black, accented by hints of silvery white to represent the moonlight. Incorporate delicate patterns within the owl's feathers, symbolizing wisdom and protection. The overall mood should evoke a sense of tranquility and mystery, blending natural beauty with a touch of the ethereal.