I think you did pretty well capturing the values. I think when it comes to size, try relating it to the previous line. For example, if your first line is the top of the pair, the next line to the left is about 2x the length of that previous line. IDK if that makes sense. But also for the bottom of the pair try breaking up the one long line into about 3 lines to make up the curved shape of the bottom. I measure out my lines as they relate to other lines for example the indent on the right side is slightly above the indent on the left side. IDK if that helped at all.