Into pilsner glass filled with ice cubes, first pour the melon liqueur, then the tequila, to create a green layer.
Add sour mix.
Slowly pour orange juice against side of glass to create the yellow layer.
Add a few more ice cubes, if needed.
Carefully float the sloe gin on top for the red layer.
Garnish with a cherry and lemon and lime wheels.
Stir just before drinking.