John Kavanagh opened up SBG Ireland on January 11th in Dublin Ireland. On hand was, Conor McGregor, Gunnar Nelson, Cathal Pendred, a handful of other fighters and Barry Finnegan. Barry created this artwork in a total of 6 hours. Incredible stuff. 
You can see more of Barry Finnegan’s work on his Facebook page: https://www.facebook.com/barryjazzfinnegan
Check out his youtube channel for vids: http://www.youtube.com/user/barrypfinnegan2