I’ll admit yours is strikingly similar to mine. That’s unfortunate.
Mine is an original work. I used http://en.wikipedia.org/wiki/File:Barack_Obama_Hope_poster.svg and http://en.wikipedia.org/wiki/File:Hammer_and_sickle.svg . It seems like yours is based on a raster version of the hope painting. I modified the colors on Wikipedia’s vector version to conform as closely as possible to the sickle and hammer colors, except that I rounded them to CMYK, and I made the black be CMYK black. The original hope painting also had two colors on the face, and there were no other communist colors to choose from in the sickle and hammer, so I made that part be a variation of the yellow, as red didn’t make any sense.