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%... \begin{figure}[h!] \centering \begin{subfigure}[b]{0.2\linewidth} \includegraphics[width=\linewidth]{coffee.jpg} \caption{Coffee.} \end{subfigure} \begin{subfigure}[b]{0.2\linewidth} \includegraphics[width=\linewidth]{coffee.jpg} \caption{More coffee.} \end{subfigure} \begin{subfigure}[b]{0.2\linewidth} \includegraphics[width=\linewidth]{coffee.jpg} \caption{Tasty coffee.} \end{subfigure} \begin{subfigure}[b]{0.5\linewidth} \includegraphics[width=\linewidth]{coffee.jpg} \caption{Too much coffee.} \end{subfigure} \caption{The same cup of coffee. Multiple times.} \label{fig:coffee3} \end{figure} %...