Very thin glazes of purples mixed with a touch of black painted onto the shadowed areas of the sword would really improve it. As it is now it looks like two solid metallic shades with a slight bit of shading at the top and bottom.
The freehand is great allround, with the gold trim being the stand out for me.
One other bit, im not sure if its stock or a conversion, but the arm holding the sword seems to be at a really odd angle, perhaps if it was angled a bit lower.
The snow is a great touch, this is a fantastic mini! You need to get over to GD UK to give Bill a run for his money (and the gold!) Im pretty sure you are capable of it!