Drawing multiple Venn Diagrams inside Venn Diagrams

Question

I'm looking to create a Venn diagram with 5 parts to it, with each part being inside the other, similar to:

However I'm not entirely sure where to begin. I've done a little reading on the tikz package and Venn diagrams in general but the best I can make uses this:

\documentclass{article}
\usepackage{amsmath}
\usepackage{tikz}
\begin{document}

\begin{tikzpicture}
\foreach \X [count=\Y starting from 2] in {$\mathbb{N}$,$\mathbb{W}$,$\mathbb{Z}$,$\mathbb{Q}$,$\mathbb{R}$}
{\draw (-\Y,-\Y/2) circle ({1.5*\Y} and \Y);
\node at (1-2*\Y,-1.1*\Y) {\X}; }
\node[anchor=south]{};
\end{tikzpicture}

\end{document}

But this just does not give what I'm looking for. I'm currently getting an output like such:

Any help to fix would be great!

Answer 1

If you want to stick to the solution with the \foreach loop, you need to change the x and y coordinates in a way that you get the desired result, for example like this (added a vertical correction to the nodes, so that all letters sit on the same baseline):

\documentclass[border=10pt]{standalone}
\usepackage{amsfonts}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}
\foreach \X [count=\Y starting from 2] in
    {$\mathbb{N}$,$\mathbb{W}$,$\mathbb{Z}$,$\mathbb{Q}$,$\mathbb{R}$} {
        \draw ({0.5*\Y},0) circle ({0.75*\Y} and {0.25*\Y});
        \node[anchor=base, yshift=-0.67ex] at ({1.25*\Y-0.75},0) {\X}; 
    }
\end{tikzpicture}
\end{document}

Answer 2

Here's one way to do it. Perhaps you need to start working from inside out ...

• help-grid starts at (0,0), extends 2 cm right and up \draw[help lines] (0,0) grid (2,2);
• each path performs two actions \draw ( 0,0) ellipse (2cm and 1cm) node at (1.7,0) {R};
• first, draw an ellipse with the given x- and y-radii
• second put some text via a node (kindly watch the missing \)
• move to the left, reducing radii, and shifting the text node, too

\documentclass[10pt,border=3mm,tikz]{standalone}
\usepackage{tikz}

\begin{document}
 \begin{tikzpicture}
    \draw[help lines] (0,0) grid (2,2);
    \draw (  0,0) ellipse (2cm and 1cm)     node at (1.7,0) {R};
    \draw (-.2,0) ellipse (1.7cm and .9cm)  node at (1.3,0) {Q};
    \draw (-.4,0) ellipse (1.4cm and .8cm)  node at (.7,0) {Z};
 \end{tikzpicture}
\end{document}

P.S.: Just for the fun of it, approaching supersonic ...

\documentclass[10pt,border=3mm,tikz]{standalone}
\usepackage{tikz}
\usepackage{fontawesome}

\begin{document}
 \begin{tikzpicture}
    \draw[help lines] (0,0) grid (2,2);
    \draw (  0,0) ellipse (2cm and 1cm)     node at (1.7,0) {R};
    \draw (-.2,0) ellipse (1.7cm and .9cm)  node at (1.3,0) {Q};
    \draw (-.4,0) ellipse (1.4cm and .8cm)  node at (.7,0) {Z};
    \node[rotate=180] at (-1.6,0) {\faFighterJet};
 \end{tikzpicture}
\end{document}