Can I eat any of them other than the first one? What is the first one?
Mycology
You can eat any of them, though some may kill you if you do :)
The first one is a morel, and the black one (also edible) is a black trumpet. Others may be edible, I'm not sure. The frog mushroom (Amanita muscaria) is supposed to be very poisonous, but there is an episode of Hamilton's Pharmacopoeia where he finds a man who eats them regularly. (This is not me suggesting you eat them yourself, just an interesting tid bit, mushrooms are weird)
You can eat fly agaric, but you have to boil it, change the water, and repeat a couple of times. The egg could be meant to represent a puffball, young stinkhorn (either of which people do eat) or an amanita still in the volva (v dangerous!). Tree nose looks like birch polypore. Purple could be based on amethyst deceiver. NSFW is stinkhorn. Deeply disconcerting is likely mealy tooth, though iirc there may be another one that looks similar. Citadel is possibly one of the yellow coral fungi (there's a lot).
Dead man's fingers are very cool too, and scarlet elf cup. They already have fairly fun names.
you missed the one that gets u high
are they the nipple ones
They are not. Should be a more oval hat
Actually if you live in the UK, one of the main id features of the liberty cap (the most common of the psychedelic mushrooms) is the umbo.
Fun fact: we’re closer to fungi than we are to plants!
And then there's stink horn. Which is just Satan's cock