I think it's important to remember that "showing" doesn't only refer to the visual elements of a scene. It means letting the action unfold in front of the reader instead of telling it in narrative.
I find it a challenge to picture and describe visual elements. Where some authors give fascinating detail about the physical surroundings of a character, I'm very spare in what I describe. In my scenes, you're lucky to know there is a carpet, never mind the color, the texture or the wear pattern.
What I try to ensure in my scenes is that I "show" the characters actions and reactions to the events around them in a way that draws a reader into the story. For example, in MARRIAGE TERMS, I wrote:
The raindrops practically sizzled against Daniel's heated skin. Amanda was the sexiest, most amazing woman alive, and it was all he could do to keep from taking her in the next five seconds.
He gulped in mouthfuls of salt air and steeled himself against the onslaught of desire.
"I've missed you," she whispered.
A steel band tightened around his chest until he thought it might explode. He cupped her face, kissing her sweet lips, absorbing her taste, reveling in her feel. "Oh, Amanda. This is so..."
Her hair was tangled with wet sand, her makeup was smeared in a rainbow, and droplets of water trickle over her cheeks.
He'd never seen a more beautiful woman, and sensation wash over him with the beat the of waves. "I remember."
"Me, too," she sighed. "I remember you were wonderful."
"I remember you were beautiful."
In my opinion, this is an example of "showing" an event. If I was to "tell" the same event, I might write something like:
After dinner, Amanda and Daniel made passionate love on a rainy, windswept beach.
It doesn't really have the same power, does it? Telling forces the reader to fill in the blanks of the character interaction. Whereas showing takes the reader along on the journey as the action unfolds. The reader still learns that Amanda and Daniel make love on a rainy, wind-swept beach. But it's in a much more interesting and compelling fashion that enriches your story.