As a design project it's cool. I think you did a good job and I don't mean to rain on your parade. But of course now I will. I think as a data visualization exercise, it's mostly what Tufte would call "chart junk". The graphics don't aid into understanding, and actually sort of distract you from the point. It would be a lot easier to read if the axis labels said things like "Warrior" instead of an obscure graphic, that even as a GW2 player myself, I have to think about. Also, the pie chart...pie charts are problematic for understanding data because we don't do a good job at interpreting area. A bar chart is considered more effective. Again, as a purely visual exercise, I think it looks cool.