I started watching you back when you drew mostly Sonic fan art, which at the time was my current fandom. Now that I'm no longer the Sonic fan I used to be, I'm so happy to see you making such incredible art for my current biggest fandom~ Excellent composition, the posing is really great, and I love all the details. The comparatively messy background helps him stand out that much more, and makes the whole picture really powerful! Great work, thank you for sharing!
You definitely have the darkened tones of a wintery scene down in all the colors of the background and his attire. Speaking of attire, the design is straight and true to the original. The only little problems I can see, but are too little to really matter, are the colors of the buttons on his right sleeve collar and on his white undershirt are blue in contrast with all the white; the end of the red sash underneath his belt ends at the center of the belt , so it should be visible in between his legs; and lastly the skin tone he has is rather too light to consider he has any Kanien'kehá:ka lineage in him. Besides those minute details though, this really is one of the best fanarts of Ratonhnhaké:ton I've seen out there.