\begin{tikzpicture}[very thick, scale=1, font={\footnotesize\sffamily}]
%\draw[help lines,xstep=.5,ystep=.5] (-7,-3) grid (7, 3);
\node (assambly) at (0,0) {\includegraphics[width=0.92\textwidth]{Fibres/figures/SciFiV2l_Modulel}};

\node[anchor=south, align=center] at (0.3, 2.1) {1~x~fibre module};
\node[anchor=south, align=center, rotate=-7, seaborndeep1] at (0.3, 1.2) {2~x~fibre ribbon};
\node[anchor=south, align=center] at (5, 1.7) {silicon pixel \\ support rings};
\draw[thick, ->] (5,1.7) -- (5.3, 1);
\node[anchor=north, align=center, rotate=-7] at (-0.0, -0.1) {target region};
\node[anchor=north, align=center] at (0, -1.0) {silicon pixel \\ support rings};
\draw[thick, ->] (-1.1, -1.5) -- (-2, -0.7);
\draw[thick, ->] ( 1.1, -1.5) -- (1.7, -1.1);
%\node[anchor=north, align=center] at (0, -2.5) {beam pipe};
\node[anchor=north, align=center] at (-3, -2.0) {fibre electronics};
\draw[thick, ->] (-3.5, -2) -- (-4.1, -1.2);
\node[anchor=north, align=center] at (3, -3.0) {fibre \\ support ring};
\draw[thick, ->] (3.5, -3.5) -- (4.3, -3.1);


\end{tikzpicture}