A succulent fruit is a fleshy fruit in which the pericarp becomes soft, juicy, and edible. Examples include mango, tomato, guava, and orange.
Diagram:
\begin{center}
\begin{tikzpicture}[scale=1.1]
% Outer layer (pericarp)
\draw[thick] (0,0) circle (2cm);
\node at (0,2.3) {Epicarp (outer skin)};
% Mesocarp (fleshy part)
\filldraw[fill=yellow!30,thick] (0,0) circle (1.5cm);
\node at (0,1.7) {Mesocarp (fleshy edible part)};
% Endocarp (inner hard layer)
\filldraw[fill=orange!60,thick] (0,0) circle (0.7cm);
\node at (0.8,0) {Endocarp};
% Seed
\filldraw[fill=brown!80] (0,0) circle (0.3cm);
\node at (0,-0.6) {Seed};
\end{tikzpicture}
\end{center}