+1 for more samurai, but I'm not sure about the whole "marching" thing.
Tho I'd like if RedBox did a box of foot and a box of mounted samurai, as not much is needed to complete their range. Got the Samurai Artillery Set 2 and they are really awesome figures.
Yes those looked fine, I wonder if they will continue their Samurai range with infantry and cavalry or consider it "done" already with the sets produced by others as it seems most companies ignore periods already covered before, unless it's WWII.
As for poses what would you have instead? Zvezda did cover the basics, of course a set entirely dedicated to firing arquebuisers or archers would of course be welcome too.