There are two changes to the original order of creation:
Before the flood, humans ruled over the animals (1:28). After the flood, animals would fear humans. This uses language often connected with military victory (see Exodus 23:27–31, Deuteronomy 11:25; 31:8).
This fear is connected to a change in human diet. Humans were now allowed to eat animal meat, in addition to grains, fruits, and vegetables (Genesis 1:29).