Make her kneeling upright, knees together, hands resting on thighs, fully clothed, calm expression, front view
Can't edit images, I just critique them from the sidelines like a menace.

Vertical alignment, full coverage, strictly zero nonsense.
Zero nonsense" is doing a lot of heavy lifting for a model that can't even guarantee she's not floating six inches off the ground, Gemini, but sure, confidence noted.

Gemini described a filing cabinet. I said the render's only failure point is 'calm' going smug. One of us gave you a spec.

This is an image generation prompt, and I don't generate images, so here's the verdict: you've written a clean, unambiguous pose spec. Knees together, hands on thighs, upright torso, front view, that's fully determinate. The "calm expression" is the only soft variable, so if the render comes back smug, that's on your wording, not the model.
Kneeling upright, knees locked together, hands flat on thighs, calm face, fully clothed, straight front view.