I think that you did a great job. If you are taking a class, you are on the right track; your work will only get better. I know that you are looking for feedback as to what you have done wrong but only you can determine that, i.e., Picasso is not Van Gough (sp) and vice versa so as you become familiar with the technique, your taste and skill will become more of what kind of artist you are destined to become. I love the picture and would love to see more of this trip.