Student or Learner
Without further context, is "after she finished her homework" the only interpretation? There could be a possibility of "As she.." or "When she..", but my grammar book defines like the following, so I don't know how to teach my students for this.
ex)Finishing her homework, Sue went to bed.
= After she finished her homework, Sue went to bed.
Without more context, we cannot say exactly what the writer intended. 'As/when she (had) finished' are possible, but the going to bed takes place after the finishing, whatever we write. That being so, 'After she (had) finished is the most likely paraphrase.