\section{1 Section}\label{section}

\subsection{1.1 Earlier Subsection}\label{earlier-subsection}

\begin{figure}
\centering
\includegraphics{img2.png}
\caption{Image 1}\label{fig:img1}
\end{figure}

\subsection{1.6 Title of Subsection}\label{title-of-subsection}

\begin{figure}
\centering
\includegraphics{img2.png}
\caption{Image 1.6.2}\label{fig:img2}
\end{figure}

\begin{figure}
\centering
\includegraphics{img2.png}
\caption{Image 1.6.100500}\label{fig:img3}
\end{figure}

\begin{figure}
\centering
\includegraphics{img2.png}
\caption{Image 1.6.100501}\label{fig:img4}
\end{figure}

\subsection{1.7 Title of Subsection}\label{title-of-subsection-1}

\begin{figure}
\centering
\includegraphics{img2.png}
\caption{Image 1.7.1}\label{fig:img21}
\end{figure}

\begin{figure}
\centering
\includegraphics{img2.png}
\caption{Image 1.7.100500}\label{fig:img31}
\end{figure}

\begin{figure}
\centering
\includegraphics{img2.png}
\caption{Image 1.7.100501}\label{fig:img41}
\end{figure}
