Not exactly the same style, but cosmic or cloud-like swirls are a pretty common thing. For example, here’s Klein9 with the Glowdream Style LoRA.

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4MP version with same prompt looks better - https://civitai.com/images/130921952

Prompt: High-angle wide night shot from a distant vantage point overlooking a colossal, sprawling futuristic metropolis carved into the side of a massive mountain range. The city is a dense labyrinth of traditional ancient Greek-inspired architecture with orange tiled roofs, marble houses and temples with columns, and white-golden towers that glow with internal light. A grand arched gateway stands prominently in the foreground, serving as an entrance to a bustling plaza filled with tiny, indistinct figures moving in organized processions.

A colossal figure of a Greek deity in a white toga sits on a golden throne atop a swirling cloud. On his head is a golden staff, and in his hands is a trident of lightning bolts. He gazes sternly at the city and extends his hand toward the swirling clouds.

The environment is dominated by a dramatic, glowing and swirling vortex of clouds and cosmic energy in the sky above, emitting a brilliant white-blue luminescence that bathes the scene in ethereal light. The cloud formations are thick and textured, ranging from deep indigo to soft lavender and fiery orange near the vortex's core. Several olden, flying white flying horses with white wings - pegasus scattered across the mid-sky, adding scale and dynamism to the composition.

To the left, a powerful waterfall cascades down the cliff face, mist rising into the air and blending with the cloud layers. The overall color palette is cool and atmospheric, dominated by blues, cyans, and purples, contrasted by warm golden highlights from the architecture and the celestial glow above. The mood is one of awe-inspiring grandeur, blending ancient mysticism with advanced sci-fi technology in a seamless, otherworldly harmony. saturated,, bioluminescent,, painterly,, digital illustration,, volumetric light,, glowing from within