As is the case with many of my mech builds, this one was inspired by the color palette.  I had been setting aside the dark red pieces (officially, "Dark Red" in the LEGO color naming scheme) for some time.  I like the combination of that color with LEGO's vibrant deep yellow color (officially, "Flame Yellowish Orange" in the LEGO color naming scheme).  And I also wanted to do a mech in the sort of mech warrior style with the minifig cab over walker legs.  This is the result.