That's because the one in the vault was hastily released with little effort to get all the needed details for it. It was a lazy upload as I told DSX earlier.
From what I understand... I think that the Tiki recolor for Lucina was the only one that had a differing cape emblem aside from the rest. I may be incorrect on this assumption, but as I recall that's what I remember it being. Considering everyone who had a recolor for Lucina in Smash for Wii U were all on the same side... I don't think any of them would have a different faction so to speak. Unless it would've been before they'd joined the group. But I doubt it, and the only one that would apply to would be Tharja's recolor.
On the second note... having a Mia like costume or setup similar to the PM alts would be fantastic... but I'm sure that would take quite a bit of time to do it well enough like this Lucina model. We can dream I suppose.
It doesn't look like he has any muscle definition on his arms or legs at all. I think texturing some in would do him some good so he doesn't look like a doll. It takes strength to weild a sword as effortlessly as he does. I'm not saying Smash 4 Ike muscles... or Captain Falcon muscles... but something to make him not look so flat. He may be a prince... and be called girly... but he's still a man, and a knight. He should have the physique of one.
One request... if it's not too much trouble... is I'd ask for the Cordelia red recolor from Smash 4. It's my favorite color of my favorite girl from the game. If not that's fine.
Lucina isn't a well built character. She's strong yes. But she's not full of muscles in any sense. I think she looks fine just the way he made her. Also... she's like, 15 or 16. She's not all that old and probably shouldn't be overly muscular to begin with. Having played Awakening three times, I'm sure it's safe to say that she looks perfect.