Neat diorama. Just one thing calling attention to itself as wrong, the suspended rail no longer spiked to the ties.
Two aspects. Generally the rail remains largely attached to the ties when disrupted by a vertical rock fall, thus there will be visible disturbance to the track position and and - thus the ballast - of the track immediately visible alongside the rock fall. And in the unlikely event a length of rail has broken free of the ties, it collapses onto the ground surface due to its mass and flexibility.
