Interesting take.
But there's some issues with the model and Wc3 standards.
☼ The stand work has its gate opened not instantly, which when looped is very awkward, it looks very faulty & cheap (NEVER have snappy animations ANYWHERE !!!)
☼ The death animation could benefit from more juice, effect, punch and speed
☼ The model is very big itself, so we would need to rescale it in game which will make special effects also smaller
☼ A destroyed crater would be a plus
☼ The decay could be replaced by AoE-like rubble of your liking.
☼ You may team color the roof tiles too as an alternate model, you call
But it is very fine as a passive building or decoration. Keep it up !