1. Li’l Sasha Braus by FancyFrontier

2. Mikasa by LuvNatsu

3. Female Titan by Aliasdotcom

4. Female Titan by Sasurealian

5. We Are The Hunters by Jin and Friends

6. Gundam EFSF Soldiers vs. AoT Survey Corps

More relative blogs:

Live-Action “Attack on Titan” Drama Coming This Summer

The Debut of the Basement from Attack on Titan

Handsome Captain Levi is Definitely the First Choice to Cosplay from Attack on Titan

Cosplay the Brave One from “Attack on Titan”

Source: http://www.rolecosplay.com/blog/6-attack-on-titan-cosplayers-who-brought-anime-to-life/