Interestingly, I use Soothe (https://github.com/jasonm23/emacs-soothe-theme) also by the same guy, which is also one of the most beautiful themes to ever grace one of my editors.

Any reason why you guys chose these themes other than it looks nice? :)

Solarized seems to be the de facto theme these days. I always wanted a theme that had some kind of "science" behind it. It also looks pretty good.

Indeed, I used Soothe for a while too. Loved that as well.