Yes, I also think that the art didn't age very well, the 3D world being quite confusing to navigate IMO.

I forked an open source reversed engineered implementation of that game some time ago, you can see it in here: https://github.com/canassa/betrayal-at-krondor

My hope was to get it working and eventualy update some of its graphics but I never had the time to properly work on it.