Poem writing

What is the ocean?
Blue swaying water,
a place for sea animals.
Waves crashing sounding like thunder,
water tasting like salt.
Glowing like crystals deep in the ocean.
That's an ocean 

Nature 
Nature is the best.
It smells like flowers outside.
Birds tweeting outside.

I learnt that on the first sentence of a haiku it is five syllables ,then on the second it is seven, then the last one is five.