Painting (i.e. watercolours, oils) is something I dread
The last poured painting you posted would be my favourite, I like how the cool colours seem to coalesce, it reminds me of an earthview of a glacial landscape.
I use acrylic paint and I make or buy my own pouring medium. I want to try epoxy pouring at some point. With covid going on my properties had to switch to make sure we have food on the table first.
I've watched people use epoxy. It slows the movement down, so they have time to manipulate the acrylic with a toothpick or brush. The other cool thing they do is, build it in layers, letting each layer cure so you get this really cool 3d effect.