10 Tips for Getting the Perfect AI-Generated Photo

The single biggest factor in how a generated image turns out is the photo you started with. A model can invent a Venetian palazzo convincingly. What it cannot do is invent identity information your source photo never contained. These ten tips are ordered roughly by how much difference they actually make.

1. Get the light right before anything else

Lighting matters more than resolution, more than camera quality, and considerably more than which theme you pick. The model has to read the three-dimensional shape of your face, and it does that from how light falls across it.

The most reliable setup costs nothing: stand facing a window during daylight, roughly one to two metres back, with the window in front of you rather than behind. That gives you a large, soft, frontal light source. An overcast day is better than bright sun — direct sunlight creates hard-edged shadows and blown-out highlights, and both destroy detail the model needs.

What to avoid: ceiling lights on their own, which drop shadow straight into the eye sockets; a bright window directly behind you, which turns your face into a silhouette; and mixed colour temperatures, such as a warm lamp on one side and cool daylight on the other, which confuse skin-tone reconstruction.

2. Face the camera, or nearly

Front-facing photos preserve identity best because they expose the most facial landmarks at once. Up to about fifteen degrees off-axis is comfortably safe. Beyond roughly thirty degrees the model has to infer the far side of your face, and inference means invention.

Strong upward or downward angles cause a specific, recognisable failure: the generated face comes out subtly younger or older than you are, because the model reads the foreshortening as bone structure.

3. Use a photo that is genuinely sharp

Aim for at least 1080 pixels on the short edge, and — more importantly — check at 100% zoom that the eyes and eyelashes are in focus. A 4000-pixel photo with motion blur is worse than a sharp 1200-pixel one. Screenshots of photos, images forwarded through messaging apps, and heavily re-compressed uploads all lose the fine texture that carries identity.

4. Take the sunglasses off — and think about the glasses too

Anything covering the face removes information. Sunglasses, masks and a hand against the cheek are the obvious cases. Less obvious: prescription glasses are frequently reconstructed inaccurately, with frames that change shape or thickness between generations. If you want your real frames in the picture, expect to run the theme a few times. If you do not mind either way, a photo without glasses is more predictable.

5. Keep the background simple

The model has to separate you from your surroundings before it can place you somewhere else. A plain wall, a door, or an uncluttered room makes that separation clean. Busy backgrounds — bookshelves, patterned curtains, other people — occasionally leave fragments of the original scene in the generated image, usually around the hair and shoulders.

6. Give the crop some room

Head-and-shoulders with a little space above the hair and down to the upper chest is the most forgiving framing. A tight crop that cuts the top of the head leaves the model reconstructing your hairline from nothing. A full-body shot where your face occupies three percent of the frame gives it very few pixels of identity to work from.

7. Relax your expression

A neutral or lightly smiling expression transfers across the widest range of themes. Extreme expressions — a broad open-mouth laugh, a hard squint — are strongly tied to specific muscle positions, and when a theme calls for a different mood the model has to undo yours first. That undoing is where faces start to drift.

8. Use a recent photo

This sounds obvious and is routinely ignored. A photo from five years ago produces a faithful generation of you from five years ago. If the point is a profile picture that colleagues or friends will recognise, the source needs to be current.

9. Run the same theme more than once

Generation is probabilistic, so the second and third attempt at a theme are genuinely different images rather than the same image with noise added. If a theme looks close but not quite right, regenerate before concluding the theme is wrong for you. UPretty's free tier allows ten generations a day, which is enough to run three themes three times and still keep one in reserve.

10. Download what you like, promptly

Generated images stay in your gallery for thirty days and are then deleted permanently. There is no archive to recover them from afterwards. Download anything you want to keep on the day you make it.

A quick diagnostic

If your results are consistently disappointing, work through this in order. Is the face sharp at full zoom? Is it lit from the front? Is it facing the camera? Is it recent? Four yeses and a mediocre result usually means the theme is the problem rather than the photo. Any single no, and fix that first — it will make more difference than switching themes ever will.