Turn Everything To Gold
Step 1: Create a new document & fill it with #000000.
Go to Filter -> Noise -> Add Noise to make twinkling stars
Set amount 14% and tick Gaussian and Monochromatic
Go to Image -> Brightness/Contrast and set option:
Step 2: Open the picture below
Use any cutting tool to cut the tower out of background (in this tutorial I used Extract tool)
Step 3: Now we will use some techniques to turn the tower into gold
Press Ctrl + B to open Color Balance, set something like this:
Press Ctrl+L to open Levels :
At this state, the result will look like this :
Repeating that step with 2 another images:
Step 4: Create a new layer then put it over layer background.
Use this brush (download brush)
Apply those brushes to the picture and you will get the result like this:
Step 5: Use Custom Shape Tool to make a ribbon to hide lacunas at the bottom.
You can add some other details to make your work looks better
Here is my final result