The original photo was taken for Exercise 104.
The original photo looks dark and fuzzy. So, I tried to adjust brightness and clearness of this photo.
First, I edited the original photo by using curve and level skills. I could make the original photos a little bit brighter and colorful than before.
Second, I merged three photos, Original, level, curve photos, to make a HDR image. HDR image gives me a good illumination contrast.
Finally, I used dodge tools to increase the exposure to darken areas on the image. It shows that I can see walls on the top of the image.