Buyers look at pictures first. Your gallery is doing more selling than your description, and most galleries are in the wrong order.
The first image is the whole pitch
It appears on the grid, in search results, and as the preview when someone shares your item. It has one job: make the category obvious at thumbnail size. A dashboard should look like a dashboard at 300px wide. Fine detail is wasted here, contrast is not.
Then the screen that does the work
Second image should be the main screen a buyer will spend their time in, filled with realistic data. Not lorem ipsum, not "Item 1, Item 2, Item 3". Real-looking names, real prices, a realistic number of rows. Placeholder data reads as unfinished, however finished the code is.
Then the things buyers doubt
Every category has a doubt. For an admin panel it is whether it works on a phone. For a booking system it is what the customer sees, not the owner. For an API it is the response shape. Show that thing third, before they have to ask.
Practical points
- Same browser chrome, or none at all, across every shot. Mixed styles read as stitched together.
- One dark and one light shot if you support both, and say so in the caption.
- Crop out your bookmarks bar, your notifications and your own email address.
- Six good images beat fifteen that repeat each other.
We convert everything you upload to WebP at high quality, so upload the largest clean version you have and let the platform handle the size.