Okay, I'll admit, it's not really art, but I had some thoughts and I needed to get them down somewhere.
So, this is basically my little headcanon on Timelord souls. (If you don't know what a Timelord is, go watch Doctor Who.)
If you are reading my book, Timelines, this is a visual reference for an upcoming plot point.
Notes (In case you can't read them):
Properties
Cannot absorb human or monster soul
Cannot SAVE or RESET
Souls turn gray over time as each individual trait is cancelled out by its opposite.
Cannot be taken by human or monster
Technically more powerful than a human soul
Incompatible with DT extractor and Barrier
*Color of Soul varies*
Amount of (remaining) color may vary depending on the Timelord.
0-100 (yrs)
Very little to no gray
100-200
Beginnings of gray outline
200-300
Full gray outline
300-400
Gray seeps toward center.
400-500
Gray covers center
500-600
Gray becomes dominant. Original color becomes lesser
600-700
Color recedes
700-800
(Same)
800-900
(Same)
900-1000
Very faint tint of original color
1000+
(Usually by this time completely gray. Stays that way for the rest of its life)