@Chillum - Yup, thats a coconut. I needed a larger HDR range (+/- 3 EV) for this shot as the coconut was almost completely black so I couldn't brighten it up as much as I wanted.
@Toofan - Thanks but still have to work on getting the exposures correctly. I am keeping most of the mistakes I did in the past in mind - focusing, horizons, foreground elements etc in mind but exposure is something that still needs a little work. Mostly since light changes very quickly during sunsets and its very easy to make mistakes in a rush to try and get as many shots possible during the golden light. A quick look at my histogram would have told me I needed a (+/- 3 EV HDR rather than the current +/- 2 EV). My camera can go upto +/- 6 EV HDR but anything above 3EV looks very artificial.
@G2/Theqca - Yup I too agree a better foreground element would have worked better and there was a nice dead tree branch a little ahead but 3 other guys were using it so I didn't want the same shot.
@Manoj - Thanks, no polarizer could be used since I was facing the sun and the polarization effect will be practically zero.
@Hayath - Thanks, but that purple glow as probably due to some oil slick that was reflecting the light. Also it was quite dark in the original photo and I brought back some detail which probably didn't do wonders for the original colours.
@Aniltulsi - Thanks ! Yup both #2 and #3 are in camera HDRs.