I don't fully understand but you could relate it to the fact that even though the sky is bright and colourful, the closer object is torn and broken, hence the dripping of the rain which could symbolise tears, this could show that whilst the overall picture may be cheerful or positive, that doesn't mean that your emotions will reflect that, sometimes we ignore what's right in front of our eyes, it could also show that no matter what happens we will still experience sadness despite how much good we are surrounded by, hope this helps
Utterson promises Dr. Jekyll that he will bear with hyde and get his rights for him and that Hyde gets justice. He also promises to help him when Dr. Jekyll is never there.
