Dwarf that has never been on the surface - ideas what things to lean into?

I am playing a Dwarf that comes from an Underground Ocean Kingdom who has never seen a sunrise or been in the rain or heard birds sing. What are some things I could be especially fascinated by, what could I play up not knowing?

I have already begun to collect bird feathers and colorful items and would love to play up the angle of the gruff dwarf that gets more and more excited by the beauty of the world above.

But maybe there's also something I should fear or be uncomfortable with in this strange new world?

Any ideas for interesting ticks or things to keep in mind as someone from underground?