Angel of Death Takes A Day Off began in a very different form than it is now.  Its first manuscript incarnation was only about 10,000 words.   As for illustrations, here is the evolution of Mort:

I painted this before ever writing the story, and loved the idea of the character. The story formed.

Inline image 1
Too black, too scary. Needs more whimsy.
Inline image 2
Inline image 3
This style seemed better in my mind. Maybe more color?
Inline image 4
Pen and ink is new to me, but, I’ll have to figure it out.  This Mort is way too dreary, even in tourist clothes.

Inline image 5
Closer.  I don’t like the bone color though.
Inline image 6
Blue is it.  Yes.
Inline image 7
There we go.  That’s Mort!
Inline image 8