Making of Digital Comics by Photoshop
Clean-Up of the Scanned Drawing by 600dpi

Painting the Black Parts

Pasting the B&W Textures

Painting the Gray Parts and Pasting the Gray Textures

Screening the Gray to B&W Dots of a Manga Style

Putting the Scanned Letters of Onomatopoeia
According to my scenario, the editors will put the letters in the speech balloons by the DTP apprications.