Question

What does the alliteration help readers imagine, and what mood does that create?

Answer 1

Alliteration can really create any mood, but it gives it a kind of rhythm that helps emphasize the mood. It can help readers picture the words clearer.

Here is an example:
Sally sells sea shells at the seashore.

The alliteration helps you picture a beach, and the mood is playful. 

Hope this helps with your passage! :)