The following is a scene from a fantasy story I'm currently working on, Snow, about winter, sacrifice, and an artist (my main character Anyas). This is a scene in her studio as she works on a special painting.
An Excerpt From Snow
The splashes of colour didn’t resemble much yet. Blobs of azure and crimson were smeared across the wood as under painting for her sky, and mauve blocked in for the shadows, awaiting her brush to cover them in white to make the snow. Today she planned to smudge the painting in drab green and brown that would later blossom into vivid shrubs and trees.
Anyas poured some of her precious oil into a jar for mixing, inhaling its sharp evergreen tang as it glugged out of the bottle. She set out her wooden palette with its familiar stains, and spooned blobs of paint on its surface from her jars. She added a bit of oil with her palette knife to thin some of the paint, and then picked up one of her brushes.
She dabbed some olive green on a corner of her brush, and some umber on the other corner. With a few strokes she formed the rough shape of a tree. More strokes followed as her brush dipped and loaded the paint, swathing life into the artwork. She brought her knife into play as well, scratching lines and ridges, building texture into the paint. Her hand and mind flowed in synchronicity, immersed in the dream of her creation, and everything else drifted away.
The sudden shout of her name from somewhere within the temple made her jump, and she knocked into her worktable. She heard the sliding scrape and then the sound of the ringing crash as glass shattered on the stone floor.
She turned, her heart fearing the loss of her prized paint, but to her relief only an empty jar lay smashed. She put down her brush and went to find a broom and the person who shouted her name.
Set a scene using concrete details—remember, there are five senses at your disposal so you shouldn't limit yourself to visual details only, but use them when suitable and avoid forcing them for the sake of including them all.
First preface your scene with an explanation of its context, a single paragraph should do. Then set up a scene using imagery and details that complement the context of the story while avoiding exposition.