All have added shading and collar.
1. Sharp slot pupil
2. Small round pupil
3. Large round pupil
4. Large round pupil and leaky

1. Flat color with sketch and line work.
2. Flat color

1. The line work on top of the sketch.
2. The line work on its own
Both with a warm cream background color so the white didn't hurt my eyes lol

Here's the Original they posted.
Also forgot to mention in the title that they gave me permission to finish and post it.