This is my own version of Crystal Maiden.
Crystal Maiden is a ranged intelligence Hero used as a hard support and disabler. She is perhaps best known for her powerful global mana regeneration aura. This aura allows mana dependent allies to excel during the early to mid game and the laning phase, and allows her to spam her own spells without needing to worry much about their mana costs.
Desc. Source: http://dota2.gamepedia.com/Crystal_Maiden
Initial Sketch is not mine : just coloring it. :) credits to the artist, don't know who is he/she. Salute!