Make a Color Fill layer and pick the color #21031e. Alter this layer mode to Exclusion 100%.
Add a Curves adjustment layer to give the edges and sides a stronger contrast. Paint around the entrance and foggy forest so it won't be darkened by this adjustment layer.
8. How to Paint the Light
To paint more light for the lamp, create a new layer on top of the layers and use a soft brush with the color #210402 to paint on the lamp and the area around it. Change this layer mode to Linear Dodge 100%.
Use a new layer and a soft brush with the color #d7a650 to paint highlights for the lamp, steps, the details on the ground, and the contours of the arch. Alter this layer mode to Overlay 100%.
On a new layer, use a soft brush with the color #ee9463 to make the highlight inside the lamp stronger. Set this layer mode to Hard Light 100%.
Congratulations, You're Done!
I hope that you've enjoyed the tutorial and learned something new for your own projects. Feel free to share your results or leave comments in the box below. Enjoy Photoshopping!