Isn't she in a swimsuit?
I think this could work just as easily with a rated "E".
I love the figure, the proportions and the shading are all very nice and stylish. The background should be more engaging though, just a detailed colored figure on whitespace just looks a bit incomplete. Even just a kooky pattern or something colorful to even things out would be nice.
Overall good job though. :) Keep it up.
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