OPEN FOR SUGGESTIONS- 4D in Singapore

Hi! EVERYONE.

I would like to ask your comments and suggestions on my below Singapore itinerary.

SINGAPORE ITINERARY ( 9- 13 AUGUST)

9 AUG (Airport Arrival 1:40pm)
+ Gardens By The Bay
+ Singapore Flyer
+ Singapore River Cruise

10 AUG (Start early morning) Sentosa
+ Cable Car
+ S.E.A. Aquarium
+ Universal Studio Singapore

11 AUG (Start early morning)
+ Singapore Botanic Gardens
+ Fullerton Hotel, Merlion Park, Esplanade
+ Makansutra
+ Orchid Garden
+ Clark Quay & Boat Quay
+ Little India
+ Marina Bay Sands Casino + Observation Deck

12 AUG (Start early morning)
+ Singapore Zoo
+ River Safari
+ Night safari

13 AUG (Start early morning)
+ China town
afternoon Departure

THANK YOU!!