The Summoning

I started this painting ~ 9 months ago as sketch. Now and then I continued to work on this in my free time, and finally I can call it done. It's the first painting where I used Clip Studio Paint's perspective tool for a drawing, but the painting is done almost completely in Photoshop.
While working on the painting I analyzed it again and again with focus on different aspects and changed some parts to optimize the composition. I believe it's the most thought through painting I created until now.