\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{backgrounds}
\definecolor{DeepBeige}{RGB}{203,176,86}
\definecolor{MidBeige}{RGB}{248,220,136}
\definecolor{LightBeige}{RGB}{252,241,210}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\begin{document}
\begin{tikzpicture}[inner frame sep = 24pt, background rectangle/.style=
{top color=DeepBeige,middle color=MidBeige,bottom color=LightBeige}, show background rectangle]
%% Reuse Julien Cretel's Escher illusion examples from http://www.texample.net/tikz/examples/escher-brick-penrose-triangle/
\begin{scope}[shift={(4,7)},scale=4.8, line join=bevel,]
\input{brick}
\end{scope}
\begin{scope}[scale=0.95, rotate=-60, line join=bevel]
\input{triangle}
\end{scope}
%% This uses an inkscape trace of a crow person!
\begin{scope}[yshift=215pt,xshift=150pt,y=1pt, x=1pt, yscale=-0.06, xscale=-0.06,]
\input{crow}
\end{scope}
%% This uses an inkscape trace of Ida!
\begin{scope}[yshift=110pt,y=1pt, x=1pt, yscale=-0.11, xscale=0.11]
\input{ida}
\end{scope}
\end{tikzpicture}
\end{document}
