It's lovely, Holly, but it looks like there are some alignment problems with the features. It's our tendency to try and put features on an even horizontal/vertical axis and when the model or reference is a few degrees off from that things can get skewed.
I suspect in the reference that the eye on our left is in reality a touch lower down than you've depicted it. The axis of the head in this painting is tilted slightly to the left at the top, which should make all the features tilted consistently that way too.
Can you post the reference?
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