A young newbie

I am fairly new to the cardstock modelling category of things but have started to do some work for my schools model railroad club. I am 14 and in 8th grade but can still prefer truthful comments on my work. Below is my first model I built and designed and if anyone wants the file please let me know.

This was only my first try and have improved much more and look forward to what comments I get on the site.

Edit: Can't add images yet will when I can