I don’t know when I did this, probably three or four years ago. It’s a combination of three apps, ArtRage oils, sketcher free and layout. I drew the metallic looking pattern first, then added the spirals and finally divided and mirrored the images.
I probably used a photo editor too. I’m not sure.
The feeling I get from making these gives me great pleasure. I can’t explain, but it takes me out of myself.