Character concepts

With our group having 4 members and there being 4 characters in our animation we all decided to draw up our own character concepts, this is what I have come up with:

I went for a more grey like tone due to it being a post apocalyptic world therefore seem to click for me, I also gave him a more futuristic looking suit, as this animation is set in the future. The character is also a human scientist so I also tried to get the lab look for my character. The mask is there so he can breathe when he is outside due to all the dust and ever other living thing being dead.