how can i get from L'causeway bay to madame tussauds and ngong ping?

Do you refer to L' Hotel Causeway Bay Harbour View Hong Kong?
If so, you can walk to reach Tin Hau from your hotel to take the Island Line to reach Central. Get out of the station from Exit J, you can follow the direction board to find the Peak Tram Terminal. Take the tram to reach the Peak and then you can find the Madame Tussaud.
To Ngong Ping, you can take the Island Line to reach Admiralty Station where youcan change to Tusen Wan Line. Take Tsuen Wan Line to reach Lai King where you can change to Tung Chung Line. Take this line to reach Tung Chung Station and then you can find the terminal of the Ngong Ping 360 Cable car.