This is a really lovely scene. I like that young Yuna is so strong, even at seven. I think is amusing she tries to reassure her father that she will be strong.
I like that Lulu is a bit flirty towards Auron, even at twelve. I can imagine the twelve year old Lulu referring to Auron as a gentleman, even more than the twenty-two year old Lulu.
You even mention the smell of his coat. You paint a very vivid picture, and I eagerly await the next chapter!