The idea is to reproduce the image as faithfully as possible. Two problems :
the parameter s is not taken into account;
the size of the labels is still too small.

[![enter image description here](https://i.stack.imgur.com/iQENc.jpg)](https://i.stack.imgur.com/iQENc.jpg)

```
      \documentclass[border=5mm]{standalone}
      \usepackage{luatex85}
      \usepackage{luamplib}
      \usepackage{unicode-math}
      \setmainfont{TeX Gyre Pagella}
      \setmathfont{TeX Gyre Pagella Math}
      \begin{document}
      \mplibtextextlabel{enable}
     \begin{mplibcode}

     vardef card(expr a, c, s) = image(
         save rectangle;
         path rectangle;
         rectangle = unitsquare xscaled 2 cm yscaled 4cm;
         draw rectangle rotatedaround((1cm,2cm),a) withcolor c;
         label(btex \Huge s etex ,center rectangle) rotatedaround((1cm,2cm),a) withcolor c;
       )

    enddef;

 beginfig(1)
    pickup pencircle scaled 4;

    color pink;
    pink = (3/4, 1/3, 1/3);

    draw card(-10, 1/4[red, white], A);
    draw card(10 , 1/4[green, white], L) shifted 80 right;
    draw card(-10, 1/4[blue, white], E) shifted 160 right;
    draw card(10, pink, A) shifted 240 right;
 endfig;    

\end{mplibcode}
\end{document}

```