Minetrain Idea(Still Not Started)

I don't know if I'm aloud to do this, but my friend and I are making a song that I'll probably use for a mine train. It's not done yet, I'm planning on making it better and adding more instruments, and I'm a begginer at making music. If anyone wants to give constructive(no, not destructive) critisism, it would be greatly appreciate it. Here it is(I also need to change the name, I have it as The Raging Antelope Of The Dead(Oh No!)(I came up with this from a sample coaster from SM)).

EDIT:It won't let me upload MIDIs I'll ask WWS if I can upload it somehow over

the PMs.