Thanks for @sadafkhan551 for the request! So, they asked me to do a tutorial on the cover of Thick as Thieves.

But see, Thick as Thieves is only As the Crow Flies, edited. So, let me show you how to create a cover of similar style!

Firstly, write your text with the font you desire! I use PixelLab for downloaded fonts. The font I used is Young Heart--which is Free for Commercial Use!

Let's make the book title, "Let Us All Yeet"

Now, put it on your canvas with a black background. As always, I use IbisPaintX!

Now, adjust the text size and position using the Lasso tool.

One of the most iconic things on the cover is apparently (based on my customers) the swirling borders used! This is easy.

Just get swirls from Google, or draw your own! Just put it all on one side first.

See, the colours doesn't matter. You can adjust it later.

Now, Duplicate the Layer...

And flip it by the Y-axis (horizontally??)

Remember I said not to care about the colours? Yup! Because you can adjust them anytime.

Now, add some random PNGs to your liking/fitting to your idea like below.

And again, Duplicate and Flip. Do the same with everything else.

Adjust the colours. Add anything else on the font if you want to. Let your creativity be free!
Remember to put in the Author's Name~

Put an Overlay/Soft Light layer if you want to put it all under one colour.

Adjust the Opacity and Colour to your liking.

And ta-da!! We did it!
If it seems empty, put in dots by randomly adjusting the brush size and just dot it anywhere you like!

Please don't copy the covers directly, as it is all mostly the writer's ideas when they requested from me.

Hope it helps!