Simile or metaphor
The clouds were as fluffy as cotton candy.
simile
The clouds were as fluffy as cotton candy.
The cloud were thick and soft looking / looked like cotton candy
Her smile was a bright ray of sunshine.
metaphor
Her smile was a bright ray of sunshine.
her smile was cheerful, happy , uplift and warm .
The car zoomed down the road like a rocket
simile
The car zoomed down the road like a rocket
The car went really fast down the road.
The classroom was a jungle during free time
metaphor
The classroom was a jungle during free time
The class was really loud and chaotic.
His voice was music to my ears.
Metaphor
His voice was music to my ears.
He had a lovely sounding voice , the voice brought comfort.