I live in Dordogne, France and I was down for living in Tower Hamlets too. I tried to change it for Dordogne, but it didn't work so I changed it to Cotswolds as that's the type of soil I have. I don't know what everyone else sees, but now I get the Cotswold weather forecast.
Anyway, about the garden. If it's a food garden it seems a bit strange that there are flowers, like roses and catmint in straight lines. Catmint is not an edible herb like peppermint. Vegetables change positions and rotate every year. A 4 foot strip of thyme is a lot but a 4 foot strip of tomatoes is not much.
I would advise buying a good book on growing vegetables and read in during winter. It's too late to plant and sow now anyway.