Descriptive:
* Her elfin features, with pointy ears and a mischievous grin, made her stand out from the crowd.
* The forest was filled with elfin magic, twinkling lights dancing in the shadows.
* The ancient tree had an elfin charm, its gnarled branches reaching towards the sky like welcoming arms.
Figurative:
* The dancer moved with elfin grace, her movements light and fluid.
* The mischievous child had an elfin spirit, always up to some playful prank.
* The writer's imagination was elfin, weaving tales of fantasy and wonder.
Literary:
* "The elfin girl, with hair like spun gold, danced through the meadow, her laughter echoing through the trees."
* "He had an elfin beauty, with piercing blue eyes and a delicate frame, that made him seem almost otherworldly."
Remember, "elfin" can refer to physical characteristics, personality traits, or even intangible qualities like imagination. Choose the meaning that best suits your intended message!