There is no clear relationship with any other country's design, but the shape of the head brings to the mind the Russian group which is also prevalent in the Baltic states (see Russia). The drawing at hand is much nicer though - Looks a bit like a bird, isn't it? - and is enhanced with a shovel.

I'm a bit puzzled in fact by the Russian design. Countries of this family are told to provide in many rather empty jobs. I thus would expect a second heap as explained in Argentina. Roadsigns are probably also to be considered propaganda.