Best Continuation ?

I analyzed the image and this is what I see. Open an appropriate link below and explore the position yourself or with the engine:

White to play: chess.com | lichess.org

My solution:

Hints: piece >!Rook!<, move: >!Rxb8+!<
Evaluation: >!White has mate in 19!<
Best continuation: >!1. Rxb8+ Kd7 2. Rxa8 Kc6 3. Rxa7 Kb6 4. Bd4+ c5 5. Bxc5+ Kxc5 6. Rxe7 g6 7. Re6 Kc4 8. Rxg6 Kc5 9. Rg5+ Kb6 10. a4 Kb7 11. Rb5+ Kc6 12. c4 Kd7 13. a5 Ke6 14. a6 Ke7 15. a7 Kd7 16. a8=Q Ke6 17. Qa6+ Kd7 18. Rb7+ Kc8 19. Qa8#!<

^(I'm a human. I hope some day we'll have a chessvision-ai-bot here)