The second one, it has a capital letter and a full stop which is needed.
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
How the plot plays out can affect it because the plot can directly affect the theme because if the plot is someone stealing something and he gets caught then a theme could be stealing gets you know where. Hope this Helps :)
Im only in middle school, but what about whats going on in todays would versus back when your parents were young??