Write down the comic script. Based on that story, sketch out characters' silhouettes and environments. Once sketched, select one construction type and draw provisional orthographic views. Stress-test the silhouette by drawing the character at different situations in order to visualize anatomic needs and make construction decisions.
Detailed Three‑Quarters view uses definitive lineart and perspective. Turnaround using lineart to preview reproduction needs later on panel drawing. Character Sheet shows character's acting face deformations.
Clothes & Gear Sheet shows how the character is going to be dressed at every scene in the script. Important for coordinating with other characters and environment, also because of color harmonies.
Paint concept art for main characters and scene environments. Give clues and make decisions about lighting and environment conditions for key scenes in the script.