Always knock. For real. It can really harm your career... and your eyes.
I'm still playing with Manga Studio. As per usual, I started with a thumbnail. I knew light was going to be important in this image and so I produced a sketch exploring the tone.
After digitally inking I coloured the image as per usual in Photoshop. I'm still playing with how to get the colouring right. I really like the energy of the sketch that I think I've lost in the final image. Hmmm. More experiments to follow methinks.