Here are two Monster Bash playfields.  The IPB (Illinois Pinball) reproduction playfield is on the left side of the screen and the HSA Stage 2 restored original playfield is on the right.  Overall the reproduction playfields are pretty nice.  Unlike the original playfields the new Monster Bash reproduction playfields do not have frosted inserts.   The lack of frosted inserts can make the text/artwork look a little different and makes them harder to read.  The colors are overall a good match on the new reproductions except the blue color on the example below looks like more of a purple color on the reproductions.  The lagoon cutout is cut differently on the reproductions so the factory original plastic will not fit.  Also some of the pre-drilled holes on the reproduction do not line up correctly and can cause issues with game play.