Misha, ex this. This is based to photo of flower (from my Moms garden). Did not touch actual photo, well removed background, but nothing more. Top of the photo, I added several "dirt" layers with different layer settings. And by dirt I mean dirt. Photo from mud, from dirty wall, from cement wall, confused texture or something chaotic like that. Then, I fooled around with eraser, clone-tool and airbrush, till I got suitable mess. Top of that, I airbrushed that green color and burned it a bit, to get that white, burned line. .n