Please remove the color gradient on treemap, i will suggest you to choose a nice green color, it's too much orange on viz.
Maybe a column bar treemap could be a second option, divided by continents.
Thanks Christian. I chose orange because it's the same orange as the bitly logo! To be honest, I know it's not the most attractive dashboard i've ever made. However, in this case, I actually made this dashboard for my own personal analytics and use - in which case, aesthetic choices become less important. Your suggestions for change are useful; in this case, I'm sticking with orange but the charts themselves don't sing, I agree.
Thank you for feedback, it's a matter of taste at the end of the day. Orange is a very nice color, very strong and positive.
I am sure that you are aware of Cynthia Brewer color palette schemes so i post the info for further readers.