Some pieces of production artwork were shared a few months ago (which only really became known on the Discord server these past few hours) from backup CDs belonging to someone who worked on Jazz 3; included among this stuff is some scans of artwork Nick Stadler drew for Jazz 2, with files dated October/November 1996.

Since the originals no longer exist, this is the highest quality we'll ever see for most of these. (Unless Nick has higher-res scans elsewhere?)
Here's the lot of them on Imgur, 37 images total: https://imgur.com/a/9ScTl9Q

The highlights include:
[IMG]https://i.imgur.com/MXH8RxP.png[/IMG][IMG]https://i.imgur.com/8msAE31.png[/IMG][IMG]https://i.imgur.com/OueFZDR.png[/IMG][IMG]https://i.imgur.com/eG1yLm2.png[/IMG][IMG]https://i.imgur.com/DmhTSR7.png[/IMG][IMG]https://i.imgur.com/qBcSmOn.png[/IMG][IMG]https://i.imgur.com/K7Q4vOs.png[/IMG]

Interesting..

The colored one picturing Jazz & Eva sitting on a wall was seen online long ago in a smaller size. It might’ve been on The Daily Carrot, I don’t remember.

[IMG]https://i.imgur.com/ovtqqw1.gif[/IMG]

[IMG]https://i.imgur.com/bOKrX4Q.png[/IMG]

Nice colourisation. :)

I posted this in an earlier page, but I did once try cleaning up the high-res photo Nickadoo took of that piece. It's way blurrier than the scan, but it is HD.

[IMG]https://i.imgur.com/FaXRGxT.png[/IMG]

Perhaps some kind of composite image is possible. (I doubt it)

I also tried to clean up a couple of his other pieces, but the results weren't very good, so I gave up and never saved my work. I may try again at some point.
I did keep saved copies of a few of the other images, but I feel like, since Nick deleted them, it would be rude to repost them as-is. Maybe that's silly.

Cool