Forgotten fantasy castle in a vast enchanted valley

An enormous forgotten kingdom hidden inside a gigantic enchanted valley, ancient castle towers emerging through thick emerald forests, colossal waterfalls surrounding the ruins, a mysterious black knight standing on a stone bridge overlooking the kingdom, glowing blue lanterns along the ancient road, enormous mountains disappearing into clouds in the background, thousands of tiny glowing particles drifting through the air, sunset breaking through storm clouds, golden rays illuminating the castle, intricate stone carvings, moss-covered ruins, detailed vegetation, cinematic depth, dramatic perspective, rich painterly textures, atmospheric fantasy illustration, epic environmental storytelling, highly detailed concept art, magical realism, masterpiece