Vertical black and grey tattoo design of an owl with one wing raised upward and the other wing lowered downward. The owl is detailed with intricate feathers and sharp eyes, exuding a sense of wisdom and mystery. Above the owl's head is a moon, adding a celestial element to the design. The overall composition should have fine shading, strong contrasts, and flowing patterns that enhance the owl's dynamic pose. The background can feature subtle clouds or stars to create a mystical atmosphere.