Step-by-step explanation:
God created the heavens to show he is of a higher nature/intelligence than humans. Heaven resides far above the Earth, far above space, and far above us humans. God lives in heaven, that means God is far above the Earth, space, and everything in between. Heaven is an example of God's grace.
God created the Earth to specifically be a home for humans. So, we have a place to live.
God created humans as a way to reflect his image. Believe it or not, humans were always created to be immortal beings. One of the biggest mysteries is God's gender which he is a male, since how the first human he created was the man Adam, and if humans was created to reflect God, then it's easy to say that God is a man.
God created the animals simply because he wanted too. In the bible God expressed his pleasure with the animals he's created and even had the first man Adam name them.
Hope this helps.