Look for a black/white photo. Or make a colored photo black/white.
Now color one element red to have it stick out and draw the eye to it –the color splash effect.

Red Downy Japanese Maple flickr photo by photosteve101 shared under a Creative Commons (BY) license
There are many ways to do it that do not involve Photoshop
Make it beautiful. Or striking. Or funny. Or whatever you like.
Reply in Mastodon for this Daily Create to @[email protected] and include the tag #tdc4579
Open in Mastodon to follow and find this Create so you can reply:
This Daily Create has been recycled from previously published ones:
• #tdc2135 1 red element (Nov 13, 2017)
Don't Want to Post Your Response to Mastodon?