Hi,
Some nice work there.
Some suggestions.
On this one the face is lost amongst the rest. The visual focus (for me anyway) is on the chest (his right) where the bright highlight is. Try and make more of the face on future efforts. I would have dropped the shield arm slightly lower so the shield doesn't screen the face so much and then made the whole of his head brighter (take your highlights almost to or right to white).
The skull on the base is quite distracting being a big splash of bright saturated colour away from the figure. I would suggest more muted or desaturated colours here and repeat them on the figure somewhere maybe. You have blood on the snow perhaps some blood on the claws or his armour somewhere. This would tie the base feature into the figure and add some story.
Your transitions on the armour look really well done in most areas. But are inconsistent in other areas (face, hair, skull on the base and gold work for example). Aim for consistency of blends across the whole model and the base.