9 last days in Japan itinerary check

This is hard for me because usually I make things up as I go alone, but now I’ve planned my route home. Would love to get some more eyes on it

Situation:

* I’m 1.5 months into my Korea-Taiwan-Japan trip. Am flying home from Seoul in early March
* So far in Japan I have done Tokyo (5 days), Hakone (2), Kanazawa (2)

This is the rest of my trip roughly planned. Tomorrow I leave for:

# Kyoto (4 nights)

1. Arrive early and visit Nanzenji Temple, Nishiki Market
2. Visit Nara park and wander
3. Visit Osaka for day to see Osaka Castle and maybe if there’s anything connected to Pachinko, a book I love. Stay late to witness the nightlife
4. Visit Kobe or just relax in Kyoto

# Hiroshima (2 or 3 nights)

1. Arrive late and relax, or arrive early and visit the memorial and dome \[note my 1-week JR pass ends here\]
2. Visit the Peace Memorial Museum and Atomic Bomb Dome (or skip if done before)
3. Visit Miyajima and I heard there’s an island with loads of onsens. Not sure yet if it’s the same place

# Nagasaki (1 night)

1. Arrive late and just explore
2. Visit Nagasaki Peace Park, Nagasaki Atomic Bomb Museum. Maybe Hashima Island. Leave late to Fukuoka

# Fukuoka (1 night)

1. Arrive late and relax
2. Fly to Okinawa OR Busan

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I’d love some advice on:

* Is Nagasaki worth the trip? If so will only one night do?
* Does anyone have any experiences good or bad with Fukuoka?
* Is there anywhere else in the south-west Japan mainland I should visit instead? I can steal days here from my time in Korea.