Karaverna 

Here's how I usually do commissions
(the character belongs to @||Kosmos|| from twitter)

Firstly, I draw several sketches. As a general rule I try 2 or 3 variants which are quite different

Then I do the lineart and think about the palette and what magic tricks I can use

For example, I used 3D (soft: blender 3.0) to do the watter

And after that idk what happens exactly. I just do kinda a lot of layers with a lot of blend modes

And then

Ta-dah

The drawing is all done