All the core - Portal 2

All the core!
(portal 2)
At first, i just wanted to draw the fact core...but. hahaha.

left to the right:
Rick!adventure core
Wheatley, intelligence dampening core
Craig ,the fact core
And Spancer, the space core!

Human version by :
draw by me..(obviously!xD)
i used a little watercolor and black aqua brush.

Sketch dump [link]
with wheatley..(at the bottom! at the top,that's my oc.)