Character Orbiting Animation

One of the scene includes a 90 degree rotation of the main character's upper body.
Since this could not be done with simple tweening, I decided to draw it frame-by-frame.
By skipping 1 frame at a time, I managed to draw a rather smooth rotation in 8 frames.
It's my first time to draw a frame-by-frame on a human face.

First of all, by turning on 'onion skin' in Adobe Flash, I used the brush tool to roughly draw the animation.

Next, by exporting all the frames into jpeg, I traced the pictures using pen tool in Adobe Illustrator for a tidier outline.

After that, I copied the outline to Adobe Photoshop as 'Smart Object', and added colors and shadows using brush.

Lastly, working in Adobe Flash again, I animated it along with the background,
and exported as JPEG sequence for compilation in Adobe After Effects.