Browsing through Tumblr, I found some more Fire Emblem Design QR codes! :) It looks like Inigo, Severa, Virion, and Bride I guess?
http://tmblr.co/ZuI5ornHVlS5
Edit:
http://tmblr.co/ZuI5ornHVlS5 (Found some more with Owain, Nah, Say'ri)
http://tmblr.co/ZuI5orm-tv8N (Chrom)
Edit 2:
http://janedoeqrcodes.tumblr.com/page/7 (There's a whole bunch towards the bottom of this page.)