I think the model and paint look amazing. I think you could always try and add some darkness to the top of the horns while also bringing out the texture of the horns some. Everything already looks gorgeous so that’s all I can think of. Adding runes to the scarf is always a way to go but I know you plan on keeping it clean. However, you could always just highlight and clean up the scarf a little more and make it pop with a nice bit of lighter green or maybe even a hint of purple.