Yeah, this video's been doing the rounds on FB all week. I love the toy accuracy of the art - you can even see the artist holding a G1 Optimus Prime toy in his hand a few times as he's painting.

My only minor criticism is that he painted Megatron with his arms pushed in like they are in gun mode and not extended as they should be in robot mode. Most likely the toy was mistransformed when he used it as a model. Perhaps it's a homage to the number of times TFs are mistransformed in photography and packaging.