In Switzerland we were hiking, looking whether we could see some mushrooms.
And there were only these puffballs, old and weary....
but while making a macro picture we saw its beautiful pattern:
Later on, while reading a magazine, I saw this picture of the Kolumba Museum,
an art museum in Cologne, Germany.
The structure of the wall immediately reminded me of the pattern from the mushroom.
It could have been a good inspiration, colourwise and patternwise.