This project is made in Blender 2.9.2. It is based on final render from tutorial (https://youtu.be/DzwI1x85qMc) and artwork (https://www.artstation.com/artwork/castle-5f64e630-8037-46ff-bd99-0719bd71dd8b).

This is the final render. Blender 2.9.2 - Cycles.