Is there an expert that could help me out with the identification?
The first comment even offers a 3-rd possibility: Jack O'Lantern (Omphalotus illudens/Lantaarnzwam) which is however very rare in The Netherlands.
Welcome to my web gallery. It gives a flavour of my nature photography work in a diary format. This blog will be updated regularly with new pictures. All photos are taken 'in the wild', with love and respect for nature.