This image was created in Blender like this.
1. Created a new 768 x 768 document.
2. Created a plane.
3. [Tab] to go to Edit Mode.
4. [Right Click] and [S] to subdivide it 15 times.
5. [Mesh -> Transform -> Randomize] to randomize the mesh.
I used Sky Texture as the environment light, and the values were Elevation (35), Rotation (180), Intensity (0.1), and Strength (0.1).
The image was rendered by using the Cycles render engine.
Create a new layer, select [light blue to blue] gradient, and gradient fill like this.
Change the layer blend mode to [Multiply].
Right click the layer to merge all layers.
Go to [Filter -> Start G’MIC-Qt -> Artistic -> Angiosse Anguish].
This is the result.
Let’s adjust the Levels like this.
This is the end of the tutorial. 🙂