For me, personally I have several improvements:
1: Make shields not woodworking, but metalworking.
2: Make armor and weapon creating their own, separate skill lines.
3: Make leather armor making and cloth armor making separate skill lines.
4: Need to make fishing into a skill line.
5: Make a profession that will allow you to skin beasts.
6: Make mining a profession, which will allow you to mine higher levels only when skill lines go up in level.
Now, I get that skinning beasts may sound gross at first, but you could implement either one of these solutions:
1: The WoW solution: After looting and skinning, beast immediately fades away.
2: The Unreal solution: Turn into a spirit form, and as the spirit rises up into the air, it slowly fades away until there is nothing there.
3: My solution: After skinning, beast turns into skeleton. The skeleton remains until beast respawns, at which point skeleton disappears.
For fishing, make catching a rare fish grant you more experience than a normal fish.
Those are my improvements?
Well, what do you guys think?
Comments, questions, concerns, insults?
If you can't handle the heat...stay out of the kitchen!