Renderman's "Timeless" art challenge

In this art challenge, my goal was to achieve a medieval castle with a bit of The Nun and a bit of Hotel Transylvania establishing shots. Although these were just layout references, I wanted to give it my own creative inputs to achieve a warm and yet mysterious look.
I used Maya and Arnold for texturing, Look dev, lighting and Nuke Compositing.
I used the assets provided in the challenge (Kitbash3d and Speedtree) and I created some of my own as well. 

Layers Used:

References: