The Look of the Film

Im having trouble finding the right look for my boy against the rest of the characters. My tutors suggest me trying to differentiate him from the holographic creatures in the film

Here are some methods i tried to seperate him from the rabbit animal:

Skin colour:

Blush:

Blue vs Black lines:

Translucent animal:

Overall i think i prefer the blue lines for the animals, and black for the boy. I do not like the skin colour and would prefer all of the colours in my film to be cold (no reds, pinks, yellows).

Below is a slight lighting test. I want the environment to be white, but have a sense of bright lighting as well, so heres a version with a blue screen overlay. May experiment more with this. It will be important later in the film with the dragon blocking out the light source as he towers over the boy, etc