More fungi

I can see no sign of a ring or volva on the first image, so not a Death Cap. With the pink-green cap and sulcate margin, this is a Russula sp.

The other Russula with a bright yellow cap could be R. claroflava. It only grows in wet areas like Alder Carrs and is associated with Birch. It can be distinguished most easily from ochroleuca by the gills and stem which turn grey-black when damaged (or with age).

The 4th image might be a waxcap but a view of the gills would help here.

The last image is very likely Pluteus cervinus (gills free and pink when mature). Melanoleuca spp. may look similar but have adnate gills which remain white.