Xmas Letter

xmas.tex

\documentclass[SNleft,]{scrlttr2}

% \usepackage[german]{babel}
\usepackage{tikz}
\usepackage{verbatim}

\usetikzlibrary{lindenmayersystems}

\tikzset{
  Koch curve/.style = {
    l-system={
      rule set={F -> F-F++F-F},
      axiom=F++F++F,
      angle=60,
      #1
    }
  }
}

\begin{document}

\thispagestyle{empty}

\newcommand\padding{1em}
\newcommand\snow[1]{%
  \begin{tikzpicture}
    \draw[Koch curve={order=#1,step=(\linewidth - 10 * \padding) / 5 / 3^#1}] l-system -- cycle;
  \end{tikzpicture}%
}

\begin{center}
  \setlength{\tabcolsep}{\padding} % for the horizontal padding
  {\renewcommand{\arraystretch}{4}% for the vertical padding
    \begin{tabular}{ccccc}
      \snow{4} & \snow{3} & \snow{3} & \snow{3} & \snow{4} \\
      \snow{3} & \snow{3} & \snow{2} & \snow{3} & \snow{3} \\
      \snow{3} & \snow{2} & \snow{1} & \snow{2} & \snow{3} \\
      \snow{3} & \snow{3} & \snow{2} & \snow{3} & \snow{3} \\
      \snow{4} & \snow{3} & \snow{3} & \snow{3} & \snow{4} \\
    \end{tabular}
  }

  Merry Christmas!
\end{center}

\setkomavar{fromname}{John Doe}
\setkomavar{fromaddress}{Mainstreet 1\\12345 City}
\setkomavar{date}{\today}
\setkomavar{place}{Zurich}

\begin{letter} {%
  Alice Smith\\
  Mainstreet 1\\
  12345 City
}

\setkomavar{subject}{Merry Christmas}

\opening{Dear X,}

I am writing to express my heartfelt gratitude for the joy of Christmas.

\closing{Best wishes,}
\end{letter}
\end{document}