How can I improve Enlightenment?

Raymond, this photo is difficult for me to get a handle on. The dark background makes most of the photo indistinguishable. Also, there is quite a bit of digital noise, which suggests to me that the photo is basically underexposed, along with that high ISO. Without knowing the shutter speed used, I can't tell if that contributed to the photo being rather soft. I suspect this was shot in low light, in those cases I suggest you use a tripod and possibly a cable release, this will allow you to use a slow shutter speed and still get a sharp shot.

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My SP Photos

I also highly recommend a cable release if you are in to night scenes. At least, use the timer function on your camera, so you won't have to push the shutter button. Also, if your camera has mirror lockup, suggest you use that. the less movement on the camera, the better the shot. Good luck.

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My SP Photos