Source: Hollow Fragment. Screenshot taken from dcinside.com. Link: http://i.imgur.com/Rva0FUA.png
Appears on these pages
Original character design by abec for the Sword Art Online Light Novel Volume 1 Kirito's beta...
Character design by Shingo Adachi for the Real World/ Fairy Dance Arc of the Sword Art Online...
Character design by Shingo Adachi for the Sword Art Online anime. Asuna in Sword Art Online...