Travelling By Train

I want to create the moment when a train goes out of a tunnel which is built through a mountain.

Originally, I made this for decorating my bookshelf, but it was too light to support the books.

This can be crafted using the LEGO Classic 11013 set. 

Since I only use 161 pieces over 500+ of 11013, I hope that my ideas can be made into a separated set.

The train is moving on the yellow rail, passing a tunnel which is built into the mountain. You can see there is a small area of foliage on top.

You can rotate the leaves for best suit.

There is one big red "flower" that you can move a little bit.