Great pixeling and colors.
Agree readability could improve a bit.
The face needs more contrasted features to stand out at once; the 'hair' could be simplified / less contrasted.
The feet shading doesn't give a clear volume.
well... the helmet is inspired by a closed Polish Hussar helm... so you can think it as a mask either way heh...
Oh and trust me, I'll try to animate this... maybe not this big though
I love the intricate details in the armor and weapons. Also like the palette -- my only minor suggestion might be giving the face more contrast, since I thought it was all part of the helmet at first... but that could just be me, lol. Overall looks great, would be amazing if this becomes (or is already) part of a full attack animation :)
The art make thing of Valkyrie profile somehow