That looks fab
Sorry was lurking from Mils earlier. I decided to do crop rotation as that's what my dad did and it helped me to have a rough forward plan for rotating. It was also good for my head to group the plants together and move together each year if that makes sense.
So for your plants you'd have :
Roots: carrots
Brassicas: broccoli, radish, lettuce, sprouts, wom bok?
Legumes and onions: mangetout, leeks, beans, peas
Fruit: peppers, courgette
I think herbs you pick a spot and stick to it, also with fruit bushes obviously. I tend to keep strawberries in the same place too ( don't think that was on your list)
This is only rough and doesn't matter if the plots overlap next year. You ll have to figure out how much space roughly the rows or plants take up. The seeds should give you a guide ; I know it makes your head hurt though so sometimes it's just trial and error.
Courgettes take up lots of space I can vouch for that one!
I always put in too many plants than the packet says as I never believe they re going to grow as big as they say
but they do
The sprouting broccoli I have in now looked so tiny and now they are massive!
Hth!