This is something that will add depth to your writing and allow your readers to experience the worlds you’ve created to the fullest.
What I mean by 3D is making use of all five senses. I personally tend to use sight, sound and touch most effectively, but I am pushing myself to use smell and taste too.
Don’t be too straight forward in this, I mean, don’t just describe the taste of a juicy hamburger. Try thinking outside the box; describe the chalky flavor of dirt as your character does a face plant after falling off his bike, the metallic flavor of blood as he bites his tongue.
Descriptions also add individuality to your character. How they experience something can be different than how someone else experiences it. What they see, what they focus on, can show the reader how their mind works and what’s important to them. For example: If two people are walking down the street and one man focuses on the jaywalker while the other notices the finely trimmed rose bushes in the park, what does that say about them? What if one of them knew someone who’d been hit by a car? Then jaywalkers or pedestrians may get more attention from them.
But be warned, sometimes descriptions can be overkill. We are no longer in the Victorian Era, so paragraphs about fog and the gloominess of mountains can put an agent/reader off. Use your descriptions decisively and don’t waste words where they’re not needed. In fact, it may serve better to get more descriptive in a second draft, after you’ve worked out some of the more basic issues.
Happy writing folks!