Great photo and azrael has said what i was going to say, but how do you get a HDR from 1 photo? a HDR is (from what i know) multiple photos taken at different exposures and merged to get all the shadow/highlight detail in one image..... But still, great photo dude. i like it
Technically you can always just export a whole bunch of jpgs with different exposures using your RAW software. Will work just as well, but 1 RAW file will always work better because you're not losing as much information when merging.