I have used ND400 to take this photo and change the water to be soften
Time to take this photo is almost 6:30pm, once apply my lens with ND400 to reduce lighting for 9 stop. Then can take me use a long exposure almost 5 min for this photo.
Adjust level and curve to take more dimension on the rock by use dodge and burn tool in Photoshop
Sorry to delete the previous photo and upload once again because i have to adjust in a little bit detail