thor fighting the forest spirits for the old oak ai generated content

ahnenerbe ancient asgard ash branch celtic celtictreeoflife concepts design drawing eormen fantasy floral forest germanic gothic icons illustration irmin irminsul leaf life midgard nature north oak odin ornament ornamental pattern plant roots sacred saxon scandinavia sign spirituality symbol thor tree trunk tyr vector viking weaving white wicca wotan wreath yggdrasil