It is not often I see many male elementalists, and I must say I LOVE what you did here. I would like to see some pictures in the daytime to better judge the dyes, but I think you did a good job matching the AMAZING weapon. (I'm obsessed with all of those weapons lol). I think I might like to see a bit more black throughout the coat, but that could also just be the fact you are so limited from what you can do with dyes.
My only actual critique is I don't care for that scarf too much, but that's just personal preference.