Thank you so much @strega.azure, I really appreciate you taking the time to admire and comment on my post ✨🌿🖤

Answering your question, I don't really use any of that to give final details in white, no watercolors or white gel pens, I personally use white interior paint, that is; the paint you use to paint the walls, obviously I use it in white hehehe. I tell you this because I have been using it for exactly two years in my drawings and it really looks great. One day I didn't have any white paint and I had recently painted my room, which I paint white at a certain time and I took some of the paint I had left over and surprise, the final details were incredible. So well, with the number 0 brush and some paint diluted with a little water is that I make all the details in white, you are the first person to whom I tell my "secret" hehehe.

I hope I have helped you, I send you a big greeting ✨🌿🖤