这张图片中有 3 个人物，我想为它们添加不同的标题和标签。您能建议我该怎么做吗？
\begin{figure}
\begin{tikzpicture}[scale=3, every loop/.style={}]
\vertex[fill] (1) at (0, 1) [label=above: 1] {};
\vertex [fill](2) at (.5,1.5) [label=left: 2] {};
\vertex[fill] (3) at (1,.3) [label=left: 3]{};
\vertex[fill] (4) at (.7,0) [label=right: 4] {};
\vertex[fill] (5) at (1, 1) [label=above: 5][label=right: 4 \hspace{.5cm}\mbox{$=$}] {};
\vertex [fill](6) at (1.3,.5) [label=left: 6][label=below: 10] {};
\vertex[fill] (7) at (1.6, 1) [label=above: 1] {};
\vertex [fill](8) at (2.1,1.5) [label=left: 2] {};
\vertex[fill] (9) at (2.6,.3) [label=left: 3]{};
\vertex[fill] (10) at (2.3,0) [label=right: 4][label=below: 1] {};
\vertex[fill] (11) at (2.6, 1) [label=above: 5][label=right:3 \hspace{.5cm}\mbox{$-$}] {};
\vertex [fill](12) at (2.9,.5) [label=left: 6][label=below: 10] {};
\vertex[fill] (13) at (3.2, 1) [label=above: 1] {};
\vertex [fill](14) at (3.7,1.5) [label=left: 2] [label=above: 1]{};
\vertex[fill] (15) at (4.2,.3) [label=below: 3]{};
\vertex[fill] (16) at (3.9,0) [label=right: 4] {};
\vertex[fill] (17) at (4.2, 1) [label=above: 5][label=right:3] {};
\vertex [fill](18) at (4.5,.5) [label=left: 6][label=below: 10] {};
\draw (1.3,.5) to[in=-50,out=-130,loop] (5,1);
\draw (2.9,.5) to[in=-50,out=-130,loop] (5,1);
\draw (2.3,0) to[in=-50,out=-130,loop] (5,1);
\draw (2.6,1) to[in=30,out=-70,loop] (2.6,1);
\draw (1,1) to[in=30,out=-70,loop] (1,1);
\draw (3.7,1.5) to[in=130,out=10,loop] (4,1);
\draw (4.2,1) to[in=30,out=-70,loop] (4.2,1);
\draw (4.5,.5) to[in=-50,out=-130,loop] (4.5,.5);
\path
(1) edge node [below] {5} (3)
(1) edge node [below] {2} (2)
(1) edge node [below] {3} (4)
(2) edge node [right] {7} (4)
(2) edge node [above] {1} (5)
(5) edge node [right] {5} (3)
%(3) edge node [right] {1} (6)
(7) edge node [below] {2} (8)
(7) edge node [below] {5} (9)
(7) edge node [below] {3} (10)
(8) edge node [right] {6} (10)
(8) edge node [right] {2} (11)
(9) edge node [right] {5} (11)
(13) edge node [below] {5} (15)
(13) edge node [below] {2} (14)
(13) edge node [below] {3} (16)
(14) edge node [right] {6} (16)
(14) edge node [above] {1} (17)
(17) edge node [right] {5} (15)
(16) edge node [above] {1} (17)
;
\end{tikzpicture}
\end{figure}
\hspace{1.5cm}Figure $1$
\hspace{3.5cm}Figure $2$
\hspace{3.5cm}Figure $3$