I'm pretty poor as far as anything technical goes, especially computers. However I am trying hard to learn. I was therefore delighted when I came across Spoonflower where you can create your own designs, selecting various style repeats. As you can see I'm hooked on mirror repeats. I've got a little carried away down loading all sorts, finding that details of my paintings worked best.
This first one is my favourite, I think it would make a great fabric!