\vskip -0.5cm
\begin{figure}
  \begin{tikzpicture}[>=latex]

    \node at (17.5,6) {\includegraphics[scale=0.8,angle=270]{images/aiida-network.eps.gz}};

    \shade[left color=i6colorscheme2,right color=i6colorscheme3] (4.5,6) ellipse (1.5 and 0.75);
    \shade[left color=i6colorscheme2,right color=i6colorscheme3] (3,8) rectangle (6,6);
    \shade[left color=i6colorscheme3,right color=i6colorscheme2] (4.5,8) ellipse (1.5 and 0.75);

    \shade[left color=i6colorscheme2,right color=i6colorscheme3] (30.5,6) ellipse (1.5 and 0.75);
    \shade[left color=i6colorscheme2,right color=i6colorscheme3] (29,8) rectangle (32,6);
    \shade[left color=i6colorscheme3,right color=i6colorscheme2] (30.5,8) ellipse (1.5 and 0.75);

    \node at (13.5,-2) {\includegraphics[scale=0.175,angle=270]{images/AiiDA_logo.eps.gz}};
    \node at (19,  -2) {\includegraphics[scale=0.3,angle=270]{images/AiiDA_title.eps.gz}};

    \node at (30.5,-2) {\includegraphics[scale=0.25,angle=270]{images/tcod.eps.gz}};
    \node at ( 4.5,-2) {\includegraphics[scale=0.35,angle=270]{images/codsmall.eps.gz}};

    \draw[line width=3pt,decorate,decoration={amplitude=7pt,brace,mirror}]
        (2,0) -- (7,0);

    \node at (4.5,-4.5) {%
      \begin{minipage}{7.5cm}
        \begin{center}
          \footnotesize experimental structure database
        \end{center}
      \end{minipage}
    };

    \draw[line width=3pt,decorate,decoration={amplitude=7pt,brace,mirror}]
        (8,0) -- (27,0);

    \node at (17.5,-4) {%
      \begin{minipage}{19cm}
        \begin{center}
          \footnotesize calculation environment
        \end{center}
      \end{minipage}
    };

    \draw[line width=3pt,decorate,decoration={amplitude=7pt,brace,mirror}]
        (28,0) -- (33,0);

    \node at (30.5,-4.5) {%
      \begin{minipage}{7.5cm}
        \begin{center}
          \footnotesize theoretical structure database
        \end{center}
      \end{minipage}
    };

  \end{tikzpicture}
\end{figure}
\begin{itemize}
  \item TCOD + AiiDA:
  \begin{itemize}
    \item Direct export of calculation results generated by any of the
          supported codes;
    \item Automatic generation of level 2 structure descriptions.
  \end{itemize}
\end{itemize}
\vskip -0.5cm
