The novelty of thrift store/garage sale-bought scenic paintings altered to add video game characters (e.g. these Katamari Damacy, Pokemon pieces) hasn't worn off on me yet, so here's a neat, autumnal scene invaded by Valve's Half Life 2, created by Nicholas Forslund.

Gordon Freeman's orange suit sticks out too much for me, but the threatening Strider and the enemy search group in the creek/woods fit really well. According to users on Reddit, the original painting, "Woodland Retreat" was by American artist Richmond Irwin Kelsey.

Kelsey's paintings typically sell for thousands at auction -- fortunately, this is just a print that was badly water damaged and that Forslund bought for just $1.