The Hopyelf NFT Collection
The Hopyelf (Elfs of hope) NFT collection was created by the artist Stefano Favaretto to stimulate a profound reflection in the visitor regarding the theme of spirituality, respect for nature and the existence of a world made of energies that transcends matter. 
Favaretto's artistic research try to investigate through a scientific instrument such as the camera that in nature there are subtle energies, spirits, mythological figures that live with us and that as such are part of us. 
The collection made of unique and rare digital files 1/1 becomes a source of reflection on the own spirituality helping in changing the own behaviors  towards the environment  and the creation of  a better world.
You can start collecting them on:
https://opensea.io/collection/hopyelf