Something I think would make a great mod (seperate from the main Skywind mod itself, but usable across Skyrim, Skywind, and Skyblivion) would be a mod to make combat animations more realistic, for melee weapons in particular. Currently every melee weapon in Skyrim is swung like a club, and weighs far more than it ever would in real life. What I'd like to see would be unique animations for each weapon type that are reflective of real life martial arts (both eastern and western depending on the specific weapon/culture). And along with unique animations: Much lighter and faster weapons (especially two-handed weapons), two-handed swords on the hip rather than the back (It's extremely inpratical to wear a sword on the back, as it's impossible to draw it in any reliable way), scabbards for two-handed swords and any one-handed swords that lack them, faster draw speeds for all bows (cross bows are fine as they are), and of course unique animations for spears and halberds. Some inspiration below.
European Martial Arts playlist: