Sunset view from Sengkang

Yesterday I was having dinner at my friend's house in Sengkang when my uncle SMS me that a rainbow has appeared in the sky. I quickly ran to the living room windows with my Canon 5D MKII and a 24-105mm lens hoping to take pictures of the rainbow but there was no rainbow to be found! Instead, I saw this beautiful dusk sky towards the west and decided to take a picture of the sunset.