Oh man. just saw some replies. Sakura will bloom earlier. Am arriving in Tokyo on the 4 Apr 2015. Hopefully still get some good views

anyways, sharing my itinerary. Need sifu help to assess if its doable or perhaps recommend better sights.
Will be 4 person trip. 3 adult, 1 senior.

Day 1 (Tokyo, Akihabara Washington Hotel)
- Arrive Saturday morning.
- Deposit luggage at hotel & go sightseeing
- Asakusa, Nakamise, Sensoji Temple
- Take Water Bus / River Cruise from Asakusa Pier (May Skip if insufficient time)
- Check in Hotel
- Evening head out to Chidorigafuji Park / Yasakuni

Day 2 (Tokyo)
- Morning head to Shinjuku & Shinjuku Gyoen
- Afternoon check out Harajuku & takeshita Dori
- Evening End with Shibuya

Day 3 (Tokyo)
- Monday Morning Tsukiji Fish Market & Sushi
- Koshikawa Korakuen for sakura viewing
- Afternoon back to Ginza
- End with dinner near Yurakucho

Day 4 (Hakone)
- Morning take train up to Hakone (romance car)
- Do Hakone Round Course
- Stay the night

Day 5 (Osaka) (Hotel Near Tennoji Station)
- Travel from Hakone to Osaka
- Chill around Dotonbori & Shinsaibashi

Day 6 (Osaka)
- Go to Himeji Castle
- Back to Kobe, Steakland
- Check out Nankinmachi, Chinatown
- Evening back to Osaka, Shinsekai

Day 7 (Osaka)
- Kuromon Ichiba
- Osaka Aquarium
- Still considering what to do remainder of the day
Day 8 (Kyoto)
- Travel to Kyoto
- Leave luggage at Kyoto station and chill around
- Check in at Machiya near Higashiyama Station
- Evening look see Maruyama Park + night scenes
Day 9 (Kyoto)
- Fushimi Inari
- Tofukuji Temple
- NIshiki Market
- Arashiyama (night)
Day 10(Kyoto)
- Kiyomizudera Temple,
- Gion District
- Miyako Odori
- Nanzenji Temple / Ginkaguji
Day 11
Travel to Osaka Airport and back to KL

Thank will check out those 3 places. In fact my stay will be between Higashiyama station and Keage station.