15 day iterirary suggestion

Need suggestions on my iterinary

I’m traveling to Japan for the first time on March 25 and would love some feedback on my itinerary.

For the first week I’ll be staying with my cousin’s family in Okegawa (Saitama). In the second week I’ll be traveling solo in the Kansai region. I'll stay at osaka

I have a rough plan. Haven't decided on the details. Does this itinerary look reasonable? I’d really appreciate any suggestions—places to add, remove, combine or rearrange, interesting places/activities anything

Day – 0 : Arrival at night

Day – 1 : Saitama – Omiya park, Kumagay sakura tsutsumi, Hikawa Shrine

Day – 2: Tokyo – Suga Shrine, Shinjuku, Shibuya

Day – 3: Tokyo – Ueno park, Akihabara, Asakusa

Day – 4: Day trip to Chichibu or mt takao, can't decide

Day – 5: Mouth Fuji day trip

Day – 6: Teamlab planets, Night bus to osaka

Day – 7: Osaka – Minoo park, osaka castle, dotonbori

Day – 8: Hyogo & Kobe

Day – 9: Kyoto – Arashiyama bamboo grove, kinkaku-ji, otagi nenbutsu-ji

Day – 10: Kyoto – kurama to kibune hike, kamo river, gion

Day – 11: Kyoto – Fushimi Inari Shrine, Byodo-in Temple, Uji river

Day – 12: Koyasan day trip

Day – 13: Nara. Night bus to Omiya

Day – 14: Rest & local roaming OR kawagoe little edo

Day – 15: Departure

Budget – ~1000$ (without flight, bus and hotel booking). Is this a reasonable estimate? I don't plan on much shopping or expensive dining.

by Several_Rock