Firewall designed placed in a row to blocking. Made by 5 layers of just one mesh. Glow and Fire Cracks on the floor and different size and different colors of layered mesh with fire shader. And add up some billboard particles to cover up the top.
Fresnel shader is simply glowing outline of skull mesh and add up some smoke and dust with particle system. Smoke trail is particles by distance and follow particle trails are made by Visual Effect Graph.
Even these are draft and practical works, all copyrights belonging to Superlazy.
Firewall
Skullball