Friend @yotsuben recommended Ranged Touch's "Mages and Murderdads" podcast to me and I've taken the opportunity to finally play along with Baldur's Gate 1 and 2, which should hopefully fill a big hole in my CRPG experience.
Kui Ryoko of Dungeon Meshi / Delicious in Dungeon fame drew some fanart of the character portraits some years ago, so I decided to do some (extremely basic) modding and stick those in now that I've reached BG2. I was sick of looking at the portrait I picked for the protagonist back in BG1 anyway, especially now since the color tone clashes so heavily with the BG2 UI aesthetic.
It was a fairly simple process since it's a pretty old game even with the Enhanced Edition architecture improvements. Each portrait needs to be saved as three different .bmp files (lol) at specific pixel ratios. I don't do much image editing so my process probably sounds barbaric to any artists, but I basically opened the full Kui Ryoko image, told Gimp to make a rectangular selector of 210x330 pixels, and then would Ctrl-C->Ctrl-V each portrait into MS Paint and save as bitmap. Then I just renamed them to the same internal file names for each character and dumped them into the portraits folder.
Please read Dungeon Meshi by the way, it's very good. Most anime fantasy is clearly built around some kind of Dragon Quest framework (and while that isn't necessarily a bad thing, it's a direct predecessor of the hordes of insipid isekai garbage out there), so it's fun and novel to see one that's clearly running off Dungeons & Dragons logic but filtered through a different culture and method of storytelling. Kui Ryoko clearly puts a lot of thought and effort into the world and character design; her side character books and such have some incredible pages about making sure faces and silhouettes and such are recognizable even if, for example, the characters are polymorphed into different species. Excellent stuff.