bottom one looks like a type of mottle gill like a panaeolus subbalteatus. The spore dusting the stem looks the characteristic purple brown not the white cream of marasmius oreades. marasmius oraades is more irraglar in shape, the gill plates are much thicker and more distant. I am not a expert at iding the mottlegill group as I don't consume them. possession of certain mottlegills when dried may be illegal under the control of drugs act.
Top one is a blusher as the vovla is fused, it should stain red when cut. It is edible but I don't think it is much cop.
I can't id a red russula from piccy.