• she has curly brown hair and green eyes → lei ha i capelli ricci, castani e gli occhi verdi - without the question tag (note: if it is clear who is about, then we always omit the personal pronoun) • her long, beautiful, brown hair and warm friendly smile → i suoi lunghi bellissimi capelli marroni e il suo caldo amichevole sorriso (commas are for lists of items)

Yess it's correct !