These are oil on MDF boards by Tom Johnson. The ‘pix’ are fantastic, and if you were a fan of Street Fighter the game these will resonate especially with you.
There’s loads to check out on his blog so head over and see what you can find: http://tomjohnsonart.blogspot.com/
Based in Bristol (UK) Johnson’s an accomplished artist & describes himself as a ‘free lance maker’ whatever one of those is! Commission him to ‘make’ and see what you get.
There’s a website of his previous work http://paddocklodge.deviantart.com/#/d1kd64p – look at ‘king bugger’ he’s a sketchy little green cyclops drawn brilliantly.