Thankyou for your comments -
Trikist and Artist_by_Accident.
The pink rose gave me fits
... as it was the last rose painted and I wanted it to visually come forward vis-a-vis the rest of the roses.
I could have done this on white paper by masking the roses -
but I chose to see what happens on actual black 140 cold press paper
See beginning of this painting
Obtaining the glow was an uphill struggle... but I believe the end result was worth the effort.
- I tried something like this years ago for an article on guoache