I like what you have here, but I feel like Im looking at it through sunglasses. Maybe a bit of a boost in contrast would help. Making an HDR creates a flat image with details added to both the highlights and shadow areas resulting in a flat looking image. To correct for this its necessary to pinch the image a bit so it becomes crisp and sharp to the eye. Your sky also suffers from too much magenta in it resulting in an unrealistic color as well as halos.