Why I Walked 350+ Miles From Washington, DC to NYC

This is what a business in United States was looking for in their graphic design

I filmed my journey from Washington to NYC. And I've made a YouTube video of that walk. Now I want to create a thumbnail to go along with the video. I am uploading an idea I plugged in Nano Banana for an AI rendering. It's good, I like it - but not exactly what I want.
** The thumbnail should not be dark or sinister. I'm seeing a few designs that suggest it was post apocalyptic. It wasn't. It was a great and enjoyable time. But I definitely do want to show the storm over New York city. **

I want to include element of the walk. Easily recognizable monuments and buildings from both cities. An Amish horse drawn buggy from when I walked through Amish country. Though I'd like that de emphasized. It's a little too prominent in the picture I'm uploading.
On the last day in NYC there was an epic flood. Torrential rain and wind. I want to capture that on the thumbnail. The video opens: "everything went perfectly until the last day when it became biblical..." Read more