It's a gorgeous and wonderfully evocative scene. Princess Luna looks magnificent as she tends tot he dark crystal "black fire," feeling its essence while remaining thoughtful. Her motion and especially the flow of her mane and tail are fantastic, and the scenery is beautiful even in its desolation and quite wondrous. The floating rocks and flowing wispy mist add to the otherworldly feeling. The light of the cave is intriguing too, and the changing sky (especially with the hint of moonlight flare/nebulous ring around the planet) is breathtaking in its own right.

Thank you for sharing; plus Exiark & NekoWolf's music is very catchy while also working perfectly with the scene.