https://butterfly-conservation.org, several crucifers are used as caterpillar foodplants, especially Cuckooflower (Cardamine pratensis), above in my garden and Garlic Mustard (Alliaria petiolata), which were also selectively allow to grow.
Today and yesterday a male has been flying around.
This big headed bee is yet to be identified.
Some observations of the evolution of the garden over decades is illustrated in a talk,
The evolution of a formal garden to a nature reserve – how to enjoy a garden more with less effort!
It is described at http://www.peterlovetttalks.co.uk/page19.html