what might Shelley's use of nature be suggesting about Victor's character, mood and thoughts?

The natural world reflects the emotional experience for both Victor and the creature. Nature offers both the beauty of life and the primal struggle to survive.

We can see the nature dichotomy in chapter 9, He praises nature for what he calls its sublimity ­ that is, for the way in which it stands beyond the scope of human control and comprehension. This awestruck admiration is bitterly ironic, in light of the fact that Frankenstein's agony was originally caused by his desire to master nature and unlock its secrets. Nature, for Frankenstein, reveals the existence of an all-powerful god ­ the very god whose works he attempted to improve upon and replace.