Bring the iconic floating mountains of Pandora to life through tactile stone textures paired with airy sky gradients. Paint the lower half of the nail plate with a soft misty grey and light blue ombre blend to represent Pandora’s atmosphere. Using a thick 3D sculpting gel or gel putty, mold raised, jagged rock silhouettes across the upper third of the nail plate, texturing the surface with a coarse stippling brush before curing. Dust dark grey and moss-green chrome pigments over the raised stone shapes to mimic rocky cliffs covered in alien vegetation. Finish by brushing a glossy topcoat exclusively over the background while keeping the stone features tactile and matte.