The tag cloud in your Onepage-theme looks a little bit simple and needs very much space, so it is very confusing. Do you plan to adapt these function a bit? In another blog I use the Twenty Fourteen theme. There the solution for the tag cloud is quite good. It uses less space between the lines and uses different font sizes. I would be glad if you would work a bit on it in the future, less space between the lines, different font sizes, customizable colour... and so on