Klingon Super Cruiser weapons test

This is what I imagine this my non-canon Klingon variant would have in the way of firepower. What effect do you think it would have on a Star Destroyer? As always, thank you for allowing me to share my weekend work in progress animations with you. I truly appreciate it.
Music 'Red' by Scott Buckley - released under CC-BY 4.0. www.scottbuckley.com.au