Step 15Make another Curves adjustment layer to reduce the contrast of the area inside the hole. On this layer mask, paint on the rest to reveal the lightness.
Step 16Create a new Gradient Map adjustment layer on top of the layers and pick the colors #4d0d14 and #00601b and lower the opacity of this layer to 20%.
Step 17Add a Curves adjustment layer to brighten the area around the hole. Paint on the rest so it won’t be affected by this adjustment layer.
Step 18Make another Curves adjustment layer to darken the both sides of the scene. Paint around the hole so it won’t be darkened by this adjustment layer.
Step 19Create a Photo Filter adjustment layer and pick the color #1100ec.
Step 20Add a Color Balance adjustment layer and alter the Midtones and Highlights settings:
Step 21Make a Hue/Saturation adjustment layer to change the color of the hole to a cooler one.
Step 22Create a new layer on top of the layers and use a soft brush with the color #c1d8ed to paint over the hole. Change this layer mode to Overlay 50% and use a layer mask to erase or reduce the light on the surface and ground, leaving the effect visible subtle only inside the hole.
Step 23To make the light column from the hole , create a new layer and use the Polygonal Lasso Tool to create a shape like below. Set the feather of this selection to 2 px and fill this selection with the color #eef2f7. Add a mask to this layer and use a soft black brush to erase the light outside the hole and reduce its opacity, especially on the top so it looks like a light column.
Step 24Double click this layer, choose Color Overlay and pick the color of overlay to #c4ddf9.
Step 25Make a thinner light column inside the hole with the same method and change the mode to Overlay 100%.
Step 26Go to Filter > Blur > Gaussian Blur and set the radius to 10 px.
Add a mask to this layer and use a soft black brush to reduce the light on the bottom of this light column.
Step 27Create a new layer and use a soft brush with the color #eef2f7 to paint four light spot over the light column as show below. Change this layer mode to Overlay 100%.
Add a mask to this layer and erase the light on the bottom so it appear more subtle.