The reference to the LORD remembering Noah together with the other creatures gives us a picture of the Creator’s care. The wind is blown and the water goes down but slowly. The picture given is that of a steady decline in water levels as a consequence of wind or a natural cause.
The flood itself was a consequence of a natural occurrence in unimaginable proportions and so the water goes down by yet another miracle of wind. The LORD is lord over natural elements.
We see the LORD ordering Noah to come out of the Ark. The LORD wants the animals to multiply, increase and be fruitful. This statement helps us to understand the full extent of what the LORD meant when these same words are spoken concerning man. To be blessed is to ensure that positivity prevails and importantly to ensure that even in an event of negativity, positivity prevails. The LORD needed this decree as we are talking about only two chickens (a hen and a Cockrell). The blessing is needed to ensure that both survive otherwise project restart fails for chickens. The bull and the cow were saved as a pair. The blessing was required to ensure that both survived to ensure reproduction.
After the flood, could be 200 years after the flood, Noah builds an altar to the LORD. He sacrifices some of the clean animals. The LORD is happy and accepts Noah’s offering the way he accepted Abel’s offering. The consequence is a promise by the LORD never to destroy man and creation, including the animals. I guess the thought is that man has patched up relations with his Maker. He is enjoying good fellowship which the LORD acknowledges by promising to sustain the man through thin and thick.