Light and loose, you can't spoil it!
Just sketch some undersea creatures, then fill them with masking gum. Then sprinkle with some water and paint with different , cold colors. Sprinkle with salt on the wet surface.
This is what it looks like after drying and removing the salt. I rubbed the masking gum off with my finger. From here, you have endless opportunities for further work.
I might have missed the yellow, but I’m already late with it...
Dense paint on dry paper - the stage when I don't like it...
White gel pen and black fibre pen, loose lines, spirals, circles and dots. That's cool, I love it!
More and more details:
Digital afterwork to make it trippy