Japan in October

Hello

I'm thinking about this itinerary its in october and going to the Takayama Autumn Festival. Should I add/drop anything? this is my frist trip I do to japan and it just me. the itenerary its like this:

1-4:Tokyo visiting Kamaruka and Hakone for side trips 5: Tokyo-Matsumoto 6: Matsumoto 7: Matsumoto visiting the Kiso Valley for side trip
8: Matsumoto-Gifu or Gero (the only places have find accommodation) 9-10: Gifu or Gero travel to Takayama for the festival and visiting Hida Furukawa and Gujo for side trips 11: Gifu or Gero to Shirakawa stay in farm house if possible if not to Kanazawa
12: Kanazawa
13: Kanzawa-Kyoto
14: Kyoto visiting Imperial Palace and arounds
15: Kyoto visiting Nara and Arashiyama
16: Kyoto visiting Hiroshima and Miyajima island. it profitable to make a stop at Hijemi Castel?
17: Kyoto
18: Kyoto goin to Mt Koya and staing if possible
19: Mt Koya retorning to Kyoto
20: Kyoto retorning to Tokio
21: Tokyo goin to Mt Fuji
22: Tokyo
23: return to home.

Thanks for your advice