3-week China trip with my wife and our baby

Planning a ~3-week China trip with my wife and our baby, 20 March–11 April 2027. Mainly interested in nature, landscapes and scenic experiences. Trying to avoid long hikes/high-altitude places and keep the pace reasonably relaxed.

Would love input from people who've travelled China: Would you change anything, or am I missing a must-see destination?

Designed this Itinerary with help of an AI:

Mar 20 — ✈️ Depart Bangalore
Mar 21 — Beijing: arrive + Wangfujing
Mar 22 — Beijing: Mutianyu Great Wall, cable car + toboggan
Mar 23 — Beijing: Summer Palace
Mar 24 — ✈️ Beijing → Zhangjiajie
Mar 25 — Zhangjiajie: Yuanjiajie/Avatar Mountains + Bailong Elevator
Mar 26 — Zhangjiajie: Tianmen Mountain + glass skywalk
Mar 27 — Zhangjiajie: buffer/rest day
Mar 28 — 🚄 Zhangjiajie → Chengdu
Mar 29 — Chengdu: Panda Base + Leshan Giant Buddha
Mar 30 — Chengdu: Dujiangyan or rest
Mar 31 — ✈️ Chengdu → Dali
Apr 1 — Dali: Erhai Lake + Xizhou
Apr 2 — Dali: Cangshan cable car + Old Town
Apr 3 — Dali: relaxed day / Shaxi
Apr 4 — 🚄 Dali → Kunming → Guilin
Apr 5 — Yangshuo: Li River cruise
Apr 6 — Yangshuo: Ten-Mile Gallery/countryside
Apr 7 — Yangshuo: Xianggong Hill + relaxed day
Apr 8 — 🚄 Yangshuo → Guangzhou
Apr 9 — Guangzhou: Shamian Island + Pearl River cruise
Apr 10 — Guangzhou: shopping / relaxed day
Apr 11 — ✈️ Guangzhou → Bangalore

We've already dropped Jiuzhaigou and Lijiang mainly due to altitude, and Huangshan because of the amount of stairs/walking.

What would you change? What am I missing that is genuinely worth adding, especially for nature/scenery? Wuyuan, Longji, Fenghuang, Luoping, Guizhou, Hangzhou etc. are on my radar, should I consider these?

Thanks!