I am taking a drawing class this semester in college and yesterday we spent the class trying to get proportions of bottles down. These are my attempts I did on my 18" x 24" sketchbook. It was actually a lot harder than I thought it would be because we use an easel and I am not used to drawing at that angle as well as using a box method to layout the size/proportions. I definitely hope this class will help me improve quite a bit!