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I see some areas where the paint is so thin, canvas is showing through then other spots where the paint is piled on thickly. the subject, colors and brush work are all very interesting and painterly but also a feeling of being incomplete.
@Ezra, it's coming along nicely but (assuming you are aiming for a high degree of realism) your job would have been made so much easier if you had first painted the canvas a dark tone like that in the inside of her ear. This unifies everything and prevents the problem of white patches pointed to by @BOB73. And painting the canvas first with oil paint in a neutral dark provides a lovely toothy surface on which to apply further paint. As it is now, you are going to have to somehow fill those white areas.
I'd love to see what you can do or have done with crayons because your paintings seem to have the same multiple color quality and energy (vitality and drive). Just a thought.
@Ezra, your painting makes me happy. We lost our little dog two weeks ago so seeing your painting makes me smile.