Etiquette
Gifting a commission
A review as a gift works only if the recipient agrees to be assessed and sends their own material; a surprise commission is a consent breach, not a present.
Guides on Etiquette: Being declined, Nothing exotic, Opening well
A commissioned review cannot be given as a surprise, and the reason is not etiquette in the soft sense - it is that the product is one person's assessment of another person's body, and nobody can consent to that on somebody else's behalf.
That single rule covers almost everything else worth saying here.
Why it is not a present in the normal sense
A gift usually requires nothing from the recipient except being willing to receive it.
A review requires the recipient to send photos of themselves, describe what they want addressed, and agree to have a stranger respond to it, and none of that can be done by a well-meaning friend or partner acting on their behalf.
Buying someone a review without telling them means either sending photos of them that they did not choose to send, which a professional judge should refuse outright, or springing the whole idea on them after the fact, which turns a present into an ambush regardless of how it was intended.
Compare it to booking someone a medical exam without asking, and the shape of the problem is clearer: the fact that it is meant kindly does not change whose body is under discussion.
What a real gift commission looks like
The only version that works is one where the recipient is in on it from the start.
Tell them you would like to gift them a commission, let them decide whether they want it at all, and have them send their own material and write their own brief, or write it jointly with you if that is how they would prefer to do it.
At that point what you are gifting is the cost of the commission, which is a perfectly normal thing to pay for, in the same way you might pay for a friend's massage or haircut without needing to be the one who decides what haircut they get.
If a partner is the recipient and the two of you are shaping the brief together rather than one gifting the other, the couple's version of this etiquette covers the consent and authorship questions that raises, which are close to this but not identical.
The occasions this actually comes up on
Birthdays, an anniversary, a "congratulations on the new confidence" moment - the impulse to gift a review usually comes from an affectionate place, which is exactly why the surprise version feels harmless to the person planning it. It rarely feels harmless to the person who opens a message announcing that a stranger is now going to assess them, on a day meant to be about celebration rather than an unplanned decision about their own body.
If the occasion is the reason you want to do this, that reason survives the recipient being told in advance. "I'd love to gift you a commission for your birthday if you're interested" loses nothing by being asked rather than sprung, and the recipient who says yes gets to actually enjoy anticipating it, which a surprise cannot offer anyway once the surprise itself is the uncomfortable part.
What never works
Sending someone else's photos without them knowing is the same mistake in a different order, and it is worth reading what never to send a judge if any part of this plan involves material the recipient has not personally chosen to send.
A "surprise reveal" where the recipient only learns about it once the clip exists is not a lighter version of the problem, it is the same one: consent given after the fact is not consent, it is a request for forgiveness. The underlying harm is common enough to have been legislated against: announcing new offences in 2022, the UK government noted that police had recorded more than 28,000 reports of disclosing private sexual images without consent between April 2015 and December 2021.
The version that is actually fine
If someone has told you, unprompted, that they are curious about getting a review done, buying it as a gift once they say yes is generous and completely ordinary.
The difference between that and the surprise version is entirely in the order of operations: ask, then buy, never the reverse.
Worth noting that the same logic rules out an automated version too - a score from a tool like an AI reader or a measurement submitted still needs the subject's own material and their own choice to submit it, gifting neither skips that step.
If what you are actually weighing is whether a person or an algorithm makes the better gift, Rate Cock's comparison of the two is a more useful read than anything specific to gifting.
And if the recipient would rather see where they land against a public spread than receive a private opinion, a leaderboard-style score is the kind of gift that sidesteps the consent question differently, because the choice to submit stays entirely theirs.