Ah now, this is the way to go. LOVE printing on fabric.
I used some pieces of sheet cotton and Pebeo Setacolors and Jacquard Lumiere. I occasionally mixed the two types of paints together because the Lumiere gives a lovely sheen. I also added Pebeo's Setacolor medium which meant my paints went further.
First layer I used textures. My favourite were a fun foam stamp, bubblewrap (awesome), wallpaper and a grouting tool to make lines:
On the second layer I used positive stencils and some foilage. Here are my best results:
Finally, I blended some of my not-so-good results with the better results in PSE and came up with these: