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:

The result:

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