So this picture illustrates this murderers mind. He strangles people that's why purple/ bluish color dominates. He wears a mask to hide himself from society and he just feels safer behind it. He avoids talking to people. He is extremely calm. He's always cold that's why he drinks hot tea most of the time so he can feel warmth again. When his victims die they appear in his mind and then they wonder in that maze forever.
I hope you like it :)

Character 2:
A murderer
that is secretive
whose eyes are bulging

Environment 3:
A giant maze
that is extremely windy
and features a demonic altar

Process: http://goo.gl/KMm1ni