Painting of a rainbow over a river and a mountain with a rainbow

best quality,ultra-detailed,realistic,over the rainbow,landscape,bright colors,vivid sky,flying birds,green meadows,colorful flowers,serene river,peaceful surroundings,soft clouds,natural beauty,sunlight filtering through,impressive view,light breeze,calm atmosphere,magical aura,brilliant colors blend harmoniously,happy and joyous,peaceful and tranquil,beautifully-arched rainbow across the sky,vibrant and breathtaking scenery,a moment of awe and wonder,feeling of serenity,blissful harmony with nature,whisper of enchantment,where dreams come alive