Nexus - The final destination

This artwork was originally a school project where I explored Niagara effects in Unreal Engine. However, I really liked how the environment and overall composition turned out, so I decided to touch it up in Procreate and turn it into this final scene.
Lorewise, no one remembers who built this place or why it still stands. A silent monument where every step echoes endlessly. It is said that all souls are drawn here in the end, to the final destination.