Answer:
By whom were those pictures taken I believe is the right answer
A sonnet structure is used because sonnets were used at that time to proclaim love and were often written to loved people. By using sonnet form instead of Shakespeare's regular blankverse he shows that there is love between them.
Using my common sense and a bit of knowledge in English, I can infer that she feels strongly about her garden and loves it very much. This leads me to believe that she is a loving and caring character. If something is described vividly this generally means that 1) this is a good writer 2) they feel strongly about what they are writing 3) both a good writer and a strong feeling