I first did research on games like ‘The Evil Within’,for it has a lot of decayed environment that will help me easily imagine in what world does my character lives and survives.
Source: http://www.gamersbook.com/News/Article/ID/242/The-Evil-Within-New-Concept-Art-Shows-World-in-Chaos
I really like this picture,because it is displayed exactly in the kind of world my character is going to live.
Source: https://jonasdero.deviantart.com/art/The-Dark-Ages-312263111
Here are pictures for cyclops which I researched for their big body and dull look.
Source: https://www.dragoart.com/tuts/2087/1/1/how-to-draw-a-cyclops.htm
Source: https://www.pinterest.co.uk/nachopa/cyclops/
Source: http://powerlisting.wikia.com/wiki/Cyclops_Physiology
I spend some time watching decayed flesh and bones, but for obvious reasons I can’t put them up here.Last but not least I researched decaying nature to help me imagine what will the nature look like around my character.
Source: http://www.cnu.cc/works/85063
Source: https://depositphotos.com/11656695/stock-photo-decaying-tee-stump-in-natural.html
I think this decayed forest looks exactly as a place for my character.
Games Design 