I had no idea that black picked up so much light. No flash was used- I try to never use it for cards- but enough light in the room reflected off the black. The technique here is called Water Colour Whimsy and uses vellum.
You can see from the sample card that it's easy to do, just messy. I love messy! I want to try this on reagular white cardstock, maybe black too, and see how it looks. Is it the WC paint or the vellum that gives the luminosity? Stay tuned.........
Enjoy your day - it's a beauty!
Thank you for stopping by.