Strength 0 can carry a load of about 160 lbs. Needs some tweaking.
I suggest adjusting it to be able to carry 10 kg.
Also, making poison would be an interesting ability. It could go under the physician skill. It would be able to poison enemies' food to either death or serious illness.
I suggest that a sage etc. teach. But at what cost? For example, ordering a bird to hunt, to tell the spell to a good intention is a good idea. Teaching poisoning is another matter.
It could be like this: Sage goes to the healers in neighboring villages to ask about the reputation of the player character. If that's ok, he can teach for free, or if he or the village needs something, he can ask to get it?
Another suggestion for a new character:
Female healers.
Master craftsmen/-women who you can ask for new clothes - same as with a blacksmith.
Expert swimming skill allows for diving skills? So the ability to protect yourself from arrows and rocks?
The most frustrating problem in the game is finding a suitable physical profile. If the skills menu can be adjusted reasonably, it would be nice to be able to adjust physical information as well. Pressing the N key for over 10 minutes... it's not worth it.