1. Rough sketch with thick pencil. Since this is a symmetrical piece, I used the symmetry ruler in Manga Studio while sketching the parts that are the same (body, head shape, hair).
2. Final sketch, refining all the details.
3. Inking. I used the same symmetry ruler to ink the parts that are the same. Since different parts get covered up on different sides, I had to go ahead and ink all the parts and then erase them after I inked the parts that are different. I used a variable-width pen for everything but the halo. I also salvaged a few parts from the previous Twinsies picture to save some time and keep it consistent (just the wings and tail).
4. Color blocking.
5. Form shadows. I used a dark brown layer for the basic form shadows, painted with a soft round airbrush. I separated it into two layers with color burn for the hair and linear burn for everything else.
6. Cast shadows. Here is where I painted the shadows cast by one object onto another object. I used the same dark brown color, set to multiply.
7. Backlight. I added a thin backlight on the right side of everything, using screen with a light blue matching the backdrop.
8. Combine them all!
9. Shiny. I used white to add shine to the clothing and eyes. I used white with color dodge for shiny hair. For the hair, I use a variable-width hard brush, then go back and smudge it up with a small soft brush.
10. Colored linework.
11. I added a glitter texture to the halo (found texture set to hard light, overlaid on the halo) and painted a little sparkle on it. I added eyelashes (black variable-width brush with a few streaks of dark grey for depth) and blush (a red layer, painted with a soft airbrush) to the characters.
12. A simple gradient for the backdrop!