cultist ceremony gathering grimdark disturbing summoning ritual, in style of midjourney, stylized, detailed and intricate, elegant, ornate, horror, elite, ominous, octane render, 8k high details, haunting, beautiful digital painting, cinematic, cgsociety, zdiszlaw beksinski, h.r. giger, james jean, noah bradley, darius zawadzki, vivid colors and vibrant outlines