Ukko, Finnish God of Thunder

More Tero Porthan's art on Finnish mythology:
https://www.deviantart.com/teroporthan
https://www.instagram.com/teroporthan
https://www.youtube.com/channel/UC68gU-504ZEKb0Jxg1h8Q_A

Read more about Finnish mythology and folklore:
https://finnmyth.wordpress.com (in English)
https://kalmankartano.wordpress.com/ (in Finnish)