Floating Autumn Geometry

Prompt

A surreal digital artwork illustrating a futuristic forest scene for a 9:16 display. A gigantic glowing cube made of liquid glass hovers in the upper middle area, capturing vibrant autumn colors. A lone hiker silhouette stands on a cliff in the bottom third. The header area remains dark and clear for legibility. The lateral margins are low-contrast forest silhouettes. True #000000 deep black negative space in the sky areas. No watermark, no logo, no signature, no text, no UI, no mobile screen, no device frames, no interface elements, no artifacts, no borders, no margins, no cropping, no cut-off parts.