mourning bee in front, but the second bee seems to be maybe a mason bee?
In old flint wall with lime mortar.
Sadly not great photos.
Female
Extract from Bee-flies (Diptera: Bombyliidae) of Northwest Europe.
8.a. Tergite 3 without scale band, only laterally with some pale scales, tergite 2 with a narrow band, tergite 4 with a broad band and narrower bands on the hind margin of 5th and 6th tergite; frons with both blackish and pale scales -> Villa cingulata (Meigen, 1804)
https://home.hccnet.nl/mp.van.veen/bombyliidae/villa.html
European Stag Beetle
Lucanus cervus (Linnaeus, 1758) Lucanidae