watercolors and candle

Two weeks ago, I saw the original image of this painting from the book of Lisbet Braren-Weinrich which was being used by one member of our painting group. The book is in Dutch and its title is Hoe schilder ik in aquarel - stilleven. I was curious of how the texture in the image was done. So I asked someone from our group and she said I can use candle on the paper. When I read the book, indeed the author suggested that one of the ways to produce the texture is to use a candle. I decided to do an exercise and used the author's image. On rubbing the candle on the paper, I did it either before or after applying some watercolors on the paper. Obviously, I did the rubbing of the candle when the paper was dry. And so the above painting is my version of the author's painting shown in the book.