- Glow effect you can open properties of the model image and try to found out the glow effect just tick
- It’s better you import it from roblox but if you want to use real image just try find it on google and HD or 4K resolution
- You can import it like how you import the character to blender (background)
- It’s better you just have an idea and maybe try asking your friends if you don’t any type of ideas.
- It’s better to use eevee than cycles, most of gfx designer are using eevee as render engine right now. If you better and have a good knowledge you can keep use cycles as render engine.