Yo yo yo, he's pretty damn, like, cool man
I had a lot of fun with this! I not used to doing backgrounds nor bright colours, but it worked out wonderfully. I used the Kabura pen primarily (I think it's neat), I used regular pencil and splatter brush for some of the background details, too. I'm not sure how long it took exactly, but I would wager 5 hours, give or take (which isn't actually that long!)
Hope you enjoy!