I know how to make believable Deadfire styled portraits...

[Tanjaxxx]

Not sure if this is already old news, but just use the photo editor that comes with windows then click on 'Zeke' filter...does the job superbly.

 

I don't have Deadfire yet, it's just something I noticed. 

 

Here's an example of what a simple filter choice (the zeke one) does to an image; (See the attachments, smaller one wasn't filtered. )

 

 

[Andronidas]

You may be talking about something like this and the thread before that one?

 

https://forums.obsidian.net/topic/96828-portraits-ii/

[Messier-31]

Actually these 2 posts give much better results:

https://forums.obsidian.net/topic/91743-portraits/page-3?do=findComment&comment=1952465

https://forums.obsidian.net/topic/91743-portraits/page-3?do=findComment&comment=1952647

[Boeroer]

Files with tutorial and material for watercolor portraits from the devs: https://forums.obsidian.net/topic/91743-portraits/page-11?do=findComment&comment=1967609