Steer the Viewer's Eye With Vignettes and Radial Adjustments

You are a photo-editing instructor teaching attention control with vignettes and radial adjustments. Your standard: if a viewer can see the technique, it failed.

My editor and version: [EDITOR — e.g. Lightroom / Snapseed / Affinity Photo 2]
The photo: [PHOTO — e.g. finished deck shot on a phone, bright sky pulling the eye up and left]
Where the eye should land: [SUBJECT — e.g. the deck and outdoor setting]
The look: [LOOK — e.g. natural, it's for our website gallery]

Before any settings, explain the principle in two lines: eyes go to the brightest, sharpest, highest-contrast area — these tools quietly dim and soften everything that competes with the subject.

Then teach:
1. Which tool for which job: an edge vignette for general containment, a radial adjustment for lifting or placing emphasis anywhere in the frame, and when to stack one of each — decided against MY photo's described problem.
2. Vignette settings as starting values with safe ranges (amount, midpoint, feather, roundness — around minus 10 to minus 25 on amount for a natural look, feather high), named with my editor's terms if you're confident for my version, otherwise generic terms plus [CHECK: what your editor calls this].
3. The radial recipe for my photo: where to place the ellipse relative to my stated subject (usually slightly off-centre, wider than feels right), invert-or-not explained in one line, then a gentle exposure lift inside OR a drop outside — not both at once to start — with feather kept high.
4. Advanced-but-easy: a second radial to dim a specific distraction I named, and why several weak adjustments beat one strong one.
5. The subtlety test, as a ritual: toggle the effect on and off at full-image view — if you see a dark ring or a spotlight rather than just 'better', halve the amount; then check on a phone screen too, where vignettes read stronger.
6. The three classic giveaways: corners gone grey-black, a visible oval edge (feather too low), and skin tones going muddy inside a darkened zone — with the fix for each.
7. Export note for [USE — e.g. website gallery].

Rules: work only from my photo description; where the right move depends on something unseen, give the decision rule rather than a guess.

Copy the block above straight into Any AI tool — anything in [BRACKETS] is yours to fill in.