Hi.
I made this character for a personal project i named O2 (oxygen). I have this idée of a story in my mind about a world where all "humans" lived in the water and animals on land.
The evolution had some changes and humans are able to live on land with limited conditions. The amount of oxygen is the same as in the water for fishes to survive are enough for humans to survive and too much oxygen will kill humans. That is why the characters need the mask and equipment containing oxygen in a liquid state to survive and walk on land. The whole idée is still rough I am still working on it. Feel free to comment