Just a quick word of warning, that those miniatures are 25mm, not 28mm. They don't mix well with Perry or Northstar figures (look like kids next to them). They are probably will mix well with the old Foundry samurai and the old Grenadier figures. That said, Japanese peasants could easily be chronically underfed and the peasants with bamboo spears could easily represent that. Also, some samurai started going to war at a comparatively young age (16 certainly wasn't unheard of, and pages could be even younger) and so some of these figures could stack up as adolescents. And some people are just shorter than others !