Create a highly detailed black and white vector illustration in engraving style, divided into two scenes by a water surface line. Upper half: A majestic mountain landscape with a prominent sharp peak in the center background, dense coniferous pine trees (spruce and fir) on both left and right sides in the foreground, rocky shores on both sides of a calm lake, perfect mirror-like water reflections showing the mountain and trees. The mountain should have detailed geological striations and layered rock formations. Lower half (underwater): A large sea turtle swimming directly towards the viewer, front-facing view showing its detailed shell with hexagonal and pentagonal scutes, detailed flippers with scale patterns, barnacles on the shell, realistic facial features with textured skin, air bubbles rising on the right side. The water surface creates a natural horizontal division between the two worlds. Style: Vintage engraving, crosshatching technique, high contrast black and white, woodcut aesthetic, intricate line work, no grayscale - pure black ink on white background. The composition should be perfectly symmetrical with the water line as the central dividing element.