The phrase "a random picture" is correct and usable in written English.
You can use it when referring to an image that is chosen without any specific criteria or purpose.
Example: "I found a random picture on my phone that reminded me of our trip last summer."
Alternatives: "an arbitrary image" or "a chance photo".
I like tattoos that mean something to people, rather than just a random picture or symbol, and I've been a huge Blur fan since I was eight.
And speaking of hammered, here's a random picture of our head developer Vineet Thanedar getting drunk on Churchkey beer at 10am.
Imagine an industry hero of yours who seemed untouchable creating a product just because of a random picture you posted on an ever-moving stream of colliding information that he happened to see.
During a formal high school dance, after her date had ditched her, Patience was shocked when Sam asked her to dance and pulled her into a random picture.
A random picture of fireworks won't conjure memories of that awful Murphy's Law feeling when you unwittingly sit behind a tree that blocks your view.
These signs, bearing messages such as "Road does not end" or displaying a random picture, are scattered throughout the city of Amarillo.
Use a random pictures from the net might not attract as much buyers because many of them actually want to see the item before they go and check it out in person.
Just a few random pictures from around the ballpark #Wrigley Renovations#WrigleyField #1060Project #Cubs pic.twitter.com/bCHofcRhE2.
In a Sept. 20 Facebook post, writer Emily Bingham used a random ultrasound picture to get her friends' attention.
Subjects served as a random and Picture as a repeated effect, whereas all other factors were fixed effects.
Whether you're with a friend or by yourself, take a ton of random pictures.
