I think at this point of the story - chapters 106-111 I prefer how the novel portrayed it. The anguish Hestia and Kaelus felt were on a different level there compared to the webtoon.
I also prefer the falling out between Helios and Diana in the novel more. It felt natural but with no hate between them. Just regret an no more love. Although I did hope that Diana would get worse ending than she did in the novel (because, even compared to Helios, she never felt bad for her actions - from start to end everything was always someone else's fault), so perhaps this will change in the webtoon version.
I think at this point of the story - chapters 106-111 I prefer how the novel portrayed it. The anguish Hestia and Kaelus felt were on a different level there compared to the webtoon.
I also prefer the falling out between Helios and Diana in the novel more. It felt natural but with no hate between them. Just regret an no more love. Although I did hope that Diana would get worse ending than she did in the novel (because, even compared to Helios, she never felt bad for her actions - from start to end everything was always someone else's fault), so perhaps this will change in the webtoon version.