The snake trying to find a place to snack with its recently caught meal (a lizard) - I am not an expert with snakes but i think it is called Cohn's Bronzeback (Dendrelaphis striatus)
source of opinion: A Photographic Guide to Snakes and other Reptiles of Peninsular Malaysia, Singapore and Thailand. Merel J.Cox, Peter Paul Van Dijk, Jarujin Nabhitabhata & Kumthorn Thirakhupt. New Holland Publishers (UK) Ltd, 1988.
another view of snake with prey