Help- Cracked Ice on frozen lake, Rayfire?



I am trying to make a frozen like like this

I thought my best bet would be Rayfire but I just can’t dial in the quality I am after, I am not rayfire expert but no matter would I just can’t seem to dial in the ‘resolution’ I am after. Any curves in the cracks are very sharp and on a large scale, as opposed to being more refined.
Reference of my test:

Are there any other ways to add cracks like this or should I push on with Rayfire? I’ve made like 30 different attempts in Rayfire so not sure how much more I can push that


Admins you can delete this I moved it to 3dsmax section