These first three thumbnails where done before I gave my pitch as I was trying to work out what the checkpoint would look like and how I could make them look like a character.
These thumbnails were done after I got some feed back on the art style I was using. I had step a way from the metallic gray that I was using and make the checkpoints seem more clear and friendly. After this I started looking at the Portal games and the art style that has been used for it, mostly white with small amount of colour.
Any feed back is welcomed.