Boris Johnson would be a good place to start for someone attempting their first ever caricature. Almost any way you draw him will at least be recogniseable. Especially if you are using colour and can do the blond hair. On the other hand though with ‘easy’ faces you end up not putting in enough effort, so ironically can end up with a weaker caricature. And on that note - here’s my attempt.
Boris Johnson’s hair is like a fibre optic Christmas tree.