Zone seven as in London, zone 7?
Hostas will probably get munched by snails in pretty short order if you are indeed in London…
Woodruff will make a nice ground cover in the shade.
Yellow dead nettle should also cope well in the shade and provide nice flowers 4 the bees.
Geraniums of all kinds are very hardy and some varieties cope well in shady spots. Cranesbill is a good place to start here.
Native orchids could be good if you remember to water.
Hypericum seems to grow well in the shade for me.
It all depends on what you want! What kind of plants do you like?
Wow this is a cracking shot! Looks like he’s caught some kind of insect there what a clever dog ❤️