I was looking on the Internet to know the English & Latin name of this mushroom and found the latin one instead : Amanita muscaria
(in the meanwhile I learnt it's called a toadstool in English).
I thought it was poisonous when you ate it raw, which is quite true, but I learned it has... hallucinogenic properties! Maybe this is the one Alice in Wonderland took, who knows? I have a proof for that : if you look at the picture, you'll notice there is a piece of mushroom missing...
Canon 7D + Sigma 17-70mm 2.8-4.5
Post-process : contrast, sharpness, slight vignetting