Descriptive:
* The loveliest sunset I've ever seen painted the sky in hues of orange and purple.
* She wore a dress with the loveliest floral pattern, a symphony of colors and textures.
* The garden was filled with the loveliest fragrance, a blend of roses and lavender.
Comparative:
* Of all the flowers in the garden, the rose was the loveliest.
* Her voice was the loveliest sound I had ever heard.
* The loveliest moment of my life was when I first met you.
Figurative:
* The loveliest dreams are often the most fleeting.
* Her smile was the loveliest thing he had ever seen, radiating warmth and kindness.
* The loveliest memories are the ones we hold close to our hearts.
In a title or heading:
* The Loveliest Time of Year
* Finding the Loveliest Place on Earth
Note: "Loveliest" is the superlative form of "lovely," meaning the most lovely. It is often used to describe something that is exceptionally beautiful, pleasing, or delightful.