I found this one very fun. The silly narrative voice, the tumbeleweeds, the little details like the potato cupcake based on shared knowledge about what one eats in the army, the narration, the weirdness of it all especially with the prairie queen being a blade of grass.
OK, the reveal in the ending was perhaps one of its less appealing points if you expect it to be a twist. But I didn't think it was supposed to be a twist. The tumbleweeds were mixing up words in almost every exchange and the unusualness of requesting only children for an army implied that it was probably a mistake. So the reveal that this was a mixup didn't seem like it was really supposed to be a twist, it was supposed to be a foregone conclusion and, if anything, everyone in the story should've figured it when I did... but that's okay because without that sustained misunderstanding the story would lose a lot of its appeal and character.
One detail that even with the weirdness felt kind of out of place was the prairie queen's use of fire as her primary weapon, especially with her being a blade of grass. Why would she risk burning down her whole domain to defend her borders? And hiding in a shell of dry tumbleweeds when using fire as a primary weapon would be worse than having no shelter at all. So I thought it was strange that the prairie queen didn't use something else instead of fire, fire seemed out of place in her setting.