My Version of a Train Cake!

My first ever train cake for a 6 year old's birthday,
there are definitely a few things I would've changed,
(like never use cool whip as frosting) :)
The kids loved it especially the oreo cookies as wheels,
which kept getting eaten by the 2 year old brother before
the cake was even served!
but what can you do there just kids and they loved it
that's the most important part! :D