The following is a list of skies that may or will appear in Illuminatus. Check back here often for updates on this.
Episode 1 (MAP01 - MAP11): The sky for this episode will be a slightly modified version of this one that can be found here:
Episode 2 (MAP12 - MAP20): The sky will be this for episode 2 and it is made by Pottus:
Episode 3 (MAP21 - MAP32): The sky will be this for episode 2 and it is made by Gez. The mountains were from a graphics WAD found on Realm667.
The left sky was meant to be for episode two. It was made by DooMAD.
The right sky was meant to be for episode three. The mountains were from a graphics WAD found on Realm667 too.
Skies for episode two can be found in this thread that I made. You also need a Doomworld account to view the profiles of the users.