How do i make mountain deep eroded peaks like in Infestation survivor stories?

i dont want to only re create the 3 peaks, i want many of those 3 peaks all around my terrain as mountain borders, i still want erosion. i basically want this image but the flatter areas at the bottom can be replaced with those peaks you keep working on. the top image is my current progress, the bottom image is my goal.

Screenshot 2024-05-02 105454

Screenshot 2024-05-01 232944