Looks pretty good to me and if you hadn't told me, I might have taken a bit of time to figure out that it was HDR. How many exposures? The other question that I often have when I see something like this - was it necessary to use HDR techniques to get the exposure that you have - probably was, but I am just asking because I am curious - sometimes, folks use HDR when a properly executed regular exposure would have done the trick. Also, it would be good to know where and what this is (graveyard of some sort, but is it a special graveyard?) as not everyone looking at this will recognize it.
Cheers,
WesternGuy