Her face, her looks, the acting, are all great, I think if she keeps her enthusiasm and positive, open spirit she could really get somewhere as an actor.
Her singing is not up to the rest though. I would personally doubt that that can improve enough to start a singing career, maybe for musical it might be OK.
If I were her agent, I'd focus on acting/film rather than singing.
Say, are you planning to buy some gear in the US ?
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