Warlock Challenge (Environment) - Summoning Portal

My entry for the FlippedNormals Warlock Environmental Challenge. I managed to make third place which I am over the moon about! I hope to enter more competitions in the future.

The idea behind the piece was that a warlock had summoned an otherworldly creature through this portal, but the immense power needed has transported his room into an endless void, and has caused it to break up into various pieces that are now floating in nothingness.