My JR itinerary

Hi!

I will be travelling japan next month, and I was wondering if a JR Pass would cover ALL off the following trips

Tokyo - Kyoto
Kyoto - Nara
Nara - Osaka
Osaka - Kobe
Kobe - Naoshima
Naoshima - Hiroshima
Hiroshima - Fukoka
Fukoka - Beppu
Beppu - Kanazawa
Kanawa - Hakone
Hakone - Tokyo

I consider buying 21 Days pass and squeezing all of those in 21 days

Am i missing out on something for my first trip to japan?
Am i covered for ALL my transportation with the JR Pass?
Should I get a regional pass, covering specific areas of Japan?

Thank you so much, can't wait to visit beautiful Japan.