The results are going to be a little different depending on whether or not you're layering, wetblending, or glazing and how much time you spend doing each. Handbrushing can have similar results but will often take much, much longer to achieve. Skilled use of an airbrush allows very quick yet smooth gradients.
The principle behind the colored white videos is simply to introduce the idea of adding colors into the first few layers of shadows while still using transitional colors to make the final white appear clean and smooth.
tl;dr - Yes if you send the time.
If you want to see how you can get blends with a handbrush, check out my "laying to highlight" and "glazing to highlight" videos.
The model use in the "Colored White - Blue" video is an
oop chaos sorcerer from WFB
Thanks for watching and commenting!