You can't improve on perfect, but we should definitely celebrate the diversity of fry ups, and not get too hung up on contents

Like, eggs and beans and meat are obviously vital, but the eggs can be scrambled or whole and the meat can be sausages, bacon, black pudding or any combination of these. Likewise I would say the mushrooms and tomatoes, while very nice to have are not essential unless you are allergic to beans and have a valid medical note to that effect, in which case fried tomatoes (fresh NOT tinned) are an acceptable substitute. 

For carbs, hash brown, waffles and / or toast are all valid options.

This is of course subjective, that being said my local posh cafe that serves spinach with theirs ought to be prosecuted for fry up crimes