Denver loop road trip in October - Tetons, Yellowstone, cowboy vibe - does this itinerary make sense?

Got some Finnair vouchers and want to use them to see a different side of the US - not NYC/LA/SF. Looking for something more rural and authentic: cowboy feel, national parks, small towns. But also don’t want to end up in the US equivalent of Slough or Harrow, if that makes sense.

Travelling late October with family.

Finnair limits us a bit on airports, so we’re flying into Denver. Plan is to rent a car and loop from there.

Main questions:

1. Is this the right region for what I’m after?
2. Does this route make sense?

Rough itinerary:

• Thu 22 Oct: Arrive Denver
• Fri: → Laramie
• Sat: → Jackson
• Sun: Grand Teton National Park
• Mon–Tue: Yellowstone National Park
• Wed: → Cody
• Thu: → Fort Collins
• Fri: → Denver
• Sat 31 Oct: Denver (hoping we can visit some neighbourhoods for trick-or-treating) 🎃
• Sun 1 Nov: Fly back

Anything you’d tweak? Particularly keen to know:

• Are we missing any must-stop towns?
• Is any leg too long / not worth it?
• Best places to stay around Tetons / Yellowstone?

Thanks 🙏