\def\chapauth#1{\gdef\@chapauth{#1}} \def\@chapauth{} \def\chapimg#1#2{\gdef\@chapartist{#1}\gdef\@chapimg{#2}} \gdef\@chapimg{} \gdef\@chapartist{\@empty} \def\@makechapterhead#1{% \ifx \@chapimg \@empty \vspace*{50\p@}% {\parindent \z@ \raggedright \normalfont \ifnum \c@secnumdepth >\m@ne \if@mainmatter \huge\bfseries \@chapapp\space \thechapter \par\nobreak \vskip 20\p@ \fi \fi \interlinepenalty\@M \Huge \bfseries #1\par\nobreak \ifx\@chapauth\@empty % Nothing \else \vskip 10\p@ \Large \bfseries by \@chapauth\par\nobreak \fi \vskip 40\p@ } \else \thispagestyle{empty} \hbox{}\vfill \noindent \includegraphics[width=\textwidth]{\@chapimg} \par\nobreak \hfill Artwork by \@chapartist \par\nobreak \vfill\hbox{} \fi \chapauth{} \chapimg{}{} }