Morroblivion

Good thus far, though I would recommend modifying their ornate esthetic, to reflect the originals, and give them a unique look, rather than just real life Katanas.

For Hilts (based on original appearance)-

Dai-Katana: A black handle, with silver studs/openings under the straps, and very pale (nearly silver) gold Pommel/Guard

Wakizashi: Black hilt, straps, and silver Pommel/Guard

Katana: Rich, brown wooden hilt, subtle straps, Gold pommel/Guard

Tanto: Brown, wooden hilt, no straps, gold guard (not really there, but the metal piece holding the blade) , and a dragon head on the pommel, like this.

Blades-

-What Jorgen said above

-They get straight was their size decreases, so the longest sword has a curved edge, as it does now, and the tanto has a completely straight blade.

-And the fuller line should straighten out a bit, and indent, right now, it's a bit cray-cray, especially on the smaller swords

And remember, we mustn't necessarily make them "true to life" but Akaviri in style, which isn't necessarily real, but based off of reality. Remember, the Akaviri are all about them dovah (Akavir being their homeland), so perhaps carved patterns in the blade? And for sheaths, very ornate, and a rich black color could fit well, with gold, silver, and the occasional dark green/blue. Remember, dragons.

Akaviri swords-

Originals-

Steel Katana

"Elegant and efficient, the Akaviri katana is too expensive and sophisticated a weapon to be popular with the Legions or hero-adventurers, but well-heeled nobles, collectors, and swordmasters prize the blade for its superior balance and effectiveness."

―Garothmuk gro-Muzgub

Steel Dai-Katana

"These exotic two-handed, single-edged long blades of Akaviri design are neither common nor popular for military or private use. They are superb examples of weaponcraft, but expensive and subtle in technique."

―Garothmuk gro-Muzgub

Steel Wakizashi

"Like other exotic blades of Akaviri design, the wakizashi is an elegant and refined single-edged version of the more common double-edged longswords of Western design. Because the weapons themselves are rare, and few smiths know how to make them, they are not common in Morrowind."

―Garothmuk gro-Muzgub

Steel Tanto 

"The tanto is a stylish dagger variant of Akaviri design. For obscure reasons, the Telvanni prefer them to standard daggers as a matrix for their enchantments, and Telvanni mercenaries are often equipped with enchanted tantos by their mage-lord patrons."

―Garothmuk gro-Muzgub

Now, please forgive my lore rant!

Excellent modeling so far!

"Dai-katana"
I'll never understand why Bethesda chose give it a name like that, (especially considering the only other thing in existence to have that name is arguably the worst game in history), and then gave everything else real names.  I think for Skywind it should be changed to Odachi or Nodachi.  "Dai-kanata" is just stupid.  Or hell, just call them sabers, rather than giving them actual Japanese names since Japan doesn't exist in Elder Scrolls.  Same for Claymores.

/end rant

@Denevir:  The problem I have though, is that that's the only one they gave some made up name to.  Everything else has a Japanese name:  Katana, Wakizashi, Tanto.  It just bugs the crap out of me.  I honestly think it's just a simple (though all too common) mistake on the creator's part, kind of like how every two-handed sword is either a "Claymore" or "Zweihander" in fantasy games, when Claymores were a specific style of greatsword unique to Scotland, and Zweihander is just the German word for "Twohander."  And then it bleeds over into the real world and people start calling things all sorts of weird stuff.

And another thing is they didn't even make it up.  It came from D&D, and God only knows how they came up with some nonsense term like that.

I guess it's just a pet peeve that I've picked up from studying martial arts history.

Looking great!  Also the end is just fine, I wouldn't change it at all aside from making adjustment to the temper line that I suggested.  Remember the temper line is where the color of the steel is different, what you added was the spine/flat of the blade.

Very nice!

very nice job ronnie :)

excellent beautiful work here :D
How do u make these? max, maya, xnormal etc?

I wouldn't say that such esoteric technicalities of the forging matter in the long run. Though I still stay with my previous suggestion, these are good, though they don't quite look Akaviri (they look Japanese, and those forging technicalities don't have to apply to a fictional world, as well). I'd recommend making each sword look unique, rather than using the same hilt for each of them. The akaviri normally either use a plain wooden hilt, or black, gold, and blue, with dragon decor. Most of these changes could just be done texture wise.

My first post here can act as the style reference :)

Though in-game it is referenced that they are of actual akaviri make, plus, the original ones in-game looked pretty cool because they all looked different from each other.