I know you didn't ask for this advice, but I urge you to not have those little corner lines quite so close to the edges. If they get the printing or cutting alignment a little bit wrong, it will look really obvious that those are uneven. I'd bring them in a bit.
Will write back about the text thing shortly.
The 1/60th has bitten you here, hasn't it? The motion blur.
I would understand if, in desperation, you pushed this one through. But I urge you to discard it.
No. If the only problem is vivid reds, and the rest of the photos match ok, there's nothing else that calibration can do. It's all about the soft-proofing from here.
Then we're back where we started. Vivid reds need to be corrected using the soft-proofing profile.
But if you can't get the profile, you're just going to have to live with this, and do your best.
Yes, liquify might be tricky. But still, do you mind if I try? We should rule it out definitively before attempting the more complex option.
So may I see a crop of the full width of her body?
Well, it would be safest not to assume anything.
It's possible they are saving as PNG, and if that's the case, then yes, 24-bit is essential. The other option is 8-bit, which will be very poor quality.
What software do they have?