The Skeleton Key is one of the most important items within the game. You can’t win without it. It is held by the Forsaken King and the player must defeat him to require it.
When I first started illustrating the key, I wasn’t sure what I wanted to do with the eyes. So I made a few variants and got some feedback on what others thought would work best.
The colours for number 2 and smaller gems were the favourite.
After the feedback, I took the vectors into Photoshop for texturing. I changed the string for a chain and the gems were giving a ‘spectrum effect’ (a suggestion by HybridPK_).