How an image asset extension works
You upload pictures to the ad group, campaign or account and supply each one in more than one crop — a square version and a wider landscape version — because Google places them differently depending on the layout. The images go through review against the advertising policies, and the ones that pass become eligible to appear beside your text ad on mobile results.
Google chooses when to show a picture and which one, so uploading several gives it something to choose between. The words are unchanged: the headline and description still do the arguing, and the image only decides whether the eye stops on your ad rather than the one beneath it.
Why image assets matter
A search results page is a column of near-identical text. Anything that breaks the pattern earns attention, and on a phone an image takes a meaningful share of the visible screen. That advantage shrinks as more advertisers use them, but an ad without one next to competitors with one is at a clear disadvantage.
The picture also does explaining that a headline cannot. A trek, a treatment room, a finished installation or a product in a hand sets an expectation in an instant, and the visitor who clicks has already seen roughly what they are buying. That tends to mean fewer surprised bounces on the landing page.
Where image assets go wrong
Uploading a logo is the most frequent one. Logos belong in the business name and logo asset, and Google’s policies push back on images that are mostly a logo, mostly text, blurred, or assembled as a collage. Screenshots of your own web page fall into the same trap: they are text pretending to be a picture.
Careless cropping is next. An image chosen for the landscape shape often loses the face, the product or the point when it is squared off, and nobody notices because the preview was skipped. The third mistake is generic stock photography that could belong to any business in any country, which adds decoration without adding a reason to click.
How to act on it
Use your own photographs of the actual work, premises, team or product wherever you can. They are more distinctive than stock, they match what the visitor will find, and for a small business in Nepal a real photograph of a real place is often the strongest trust signal available. Shoot or crop deliberately for both shapes and check each preview before saving.
Upload a handful rather than one, replace the ones Google stops using, and keep the picture consistent with the page behind the click on your Search campaigns. Decide separately whether to allow the automatically pulled images Google can take from your landing page, since that is a different control and a different level of editorial oversight.