Ok, I'm gona be pretty honest here, aside from Ezio not being blond nor a woman, I loved the effect on the clothes, your expression an your pose are pretty good too, the unique thing you should really improve is the fact that you miss the Buckle, and maybe taller boots, but the modifications look great you should just add the buckle and the belts. You could also add the second hidden blade. Great Background by the way. That should be everything now, great work, keep doing it, and i would love to mention again that the modifications you made are great.
This is a really good cosplay in my opinion! The only thing I'm ify on is how she's sexualized. Yeah Ezio was good with the ladies, but his sex appeal was for the social part of his life, not his work. If this was an actual character in the AC series I wouldn't be able to take her seriously unless her sex appeal was used to manipulate men (and even women!). Kinda like a serial killer prostitute or something. I dunno
Anyway, other than that I really like it. The costume is pretty well done. I like her expression and pose. She looks like she's ready telling the Templars "Come at me, bro."