So I've almost finished a huge project that I have spent hours upon hours creating and now I don't know what to do, I've looked up so many things to try and fix it but none worked
as you can see here I have a toy train
and when I render it you can see the carriages and they are just black and you cant see anything else and you can see the wheels have put holes in it or something but I don't know what I've done.
and an all my other layers when I render it there is nothing. Please help


