Just a nitpick, but I thought the eyes looked better in the original. 1x2 pixels instead of 2x2 pixels per eye. Alternatively, three pixels in an L-shape. But 2x2 pixels per eye looks way too big at this scale, IMO. Where the original skull looked scary, the new one looks fairly cartoony and cute.
At this small scale, with these dark and muted colours, I also wonder if the pose (holding a sword in front of one leg, which is barely visible) conflicts with readability.
I like HDMD's latest shoulderpad, but not the changes to the breastplate.