Nice work! Few things I'd like changed though - the sword is a wee bit "je ne sais quoi", could it be a bit more ornate please? The handle in particular.

To solve the "hard to see on a light background" problem,could you extend the energy aura around the figure please, but make it more intense around the lich's hand? Might make it a little easier to see and make it look more, well, lich-y.

And this thing is tiny, but could there please be the very tops of a few sigils behind the head of the lich? Just for realism, as the sigils orbit their head.

Apart from that, looks great! I commend your artistic talents!