Well, I'm always posting comments about more depth and perspective, and here is a nice example. Even got a vanishing-point too.
Thank you...I am so happy that you like that photo.
It deserved a good vote. Perspective is key to a good shot. There are too many plain looking photos around. I like to be drawn into the scene.
I was looking again at this photo, and I guess it does want you to go in and explore that tunnel...hmmm....
Gold !! I expect. (Where is this place?)
On the bottom of the Grand Canyon, South Kaibab trail. The tunnel actually just part of a trail and you come out after a 10-15 meters.