As you'll know if you've been here before, there's little I like better than nosing around in graphics programs. Recently, its been Krita. I designed the entire pattern you see above from start to finish in Krita, can't praise this free, open-source and fully -featured program highly enough. I've put in *hundreds* of hours playing and experimenting with it now, and love the way that every time I use it, something always seems to emerge, finished, by the end.
Lots of things are happening right now. Some may lead somewhere, others may not.
In any event, more soon!