Create relief cartography

[White Vanilla]

I want to create relief but I am doing something wrong. I attached a sample file to this post. Can you have a look at it and tell me how to do the steps as in the video below?

Is my file correct?

I continue to end up with some fade grey overlay. I use CC.

YouTube - Relief Map in Photoshop

Thank you for your response.

[Mike_Gondek]

You need a gradient adjustment layer, which will color the layers below.

[White Vanilla]

What do you use for the lighting effect? Because that is the thing I am failing at. You using the Infinite Lighting?

[White Vanilla]

I forgot to set the height settings. My fault :).