Textures Question.

Program: PSP 9

I love using these textures/effects:


by padabee


by warriorchick

My question is, how can I make them on my own? Do you floodfill and then use the Selection Tool? Or is it as simple as using the paintbrush (and if so, what settings do I use because mine just don't come out as nice)? Is it even possible to accomplish on PSP?



By padabee:



Thanks so much.