Nebula Portals and a Leaping Figure AI Image Prompt

Cinematic concept art, flowing nebulae, two colossal portals stand left and right with a wide gap between them. The portals are immense, making the figures beneath them minuscule with a dramatic scale contrast. The lower nebula occupies only about the bottom quarter, while the upper cold-toned vast nebula. Slight low-angle wide shot. The external environment is dim and deep, with cool deep blue tones interwoven across the wasteland. The light and shadow inside and outside are sharply separated, creating a strong sense of spatial isolation. The portals are elongated ovals with soft, irregular contours. The outer frame is natural weathered rock, with shell-thin walls, rough texture retaining a three-dimensional feel, edges gradually thinning and dissolving into mist—not appearing as a door frame, but like rock layers naturally split open to reveal another space, with vines sparsely clinging to the rock surface. Beneath each portal floats a moderately thick rock platform extending only forward, with natural shadows underneath. Between the two platforms lies an abyss with churning clouds below. On the left platform grows a silver pine, its slender trunk clinging to the rock frame and climbing upward; its crown drapes down from the upper left of the portal into the opening, layered foliage like a curtain covering about one-third of the left portal, with glimpses of the city inside through the leaves. Inside the left portal—future sci-fi city: low greenery in the foreground stretching to the portal, midground sky corridors and streamlined elevated roads crossing, background streamlined skyscrapers soaring into the sky. The near view is open and uncrowded, while distant buildings rapidly shrink and converge into warm mist, producing strong perspective depth. Glass curtain walls glow with a warm sheen; the interior atmosphere is soft and warm, not glaring, full of vitality and hope. Inside the right portal—vast cosmos: bright orange-red-purple nebula regions spread, intertwined with deep blue, a faint nebula band curves from near to deep guiding the eye, nebula transitioning from dense and saturated in the foreground to dim in the distance, extending layer by layer into endless depths, with distant galaxies at the end soft-focus and blurred, leaving only scattered specks of light. Brilliant, dreamlike, full of the unknown. At the center between the two platforms, a tiny parkour figure silhouette hovers above the clouds, arms thrust forward, legs spread wide mid-leap, coat tails fluttering behind, jumping from left to right, with a dynamic pose. The left side of the body is slightly warm, the right slightly cool. In the lower part of the frame, a stylized English title is added, with extremely small English caption text below, clear hierarchical typography, loose letter spacing, not obstructing the main subject. At the top of the frame are tiny, thin sans-serif texts "Art", "JOANNA Design", "Octane render". At the bottom left is tiny text "2026 Aug.26"; at the bottom right, "JOANNA DESIGN". 35mm f/4 slight wide angle, focus locked on the portal interiors and the figure, cinematic color grading, volumetric light, atmospheric scattering, ARRI Alexa texture, fine film grain. The overall tone is deep and not overly bright.