more challenging creatures and biomes

as there is a dash and an oxygen floater that can be used to evade creatures attacks, I would love to have more features, on the player and on the environnement, to make the game more challening.

For the moment it feels a bit like an openworld where the only challenge is getting at 400m deep under an octopus, and the rest of the areas are quite easy, almost empty,

Maybe unlocking stronger creatures to fill the biomes as the game progress ? Or biomes with stronger creatures and the necessity to live in those biomes in later stages of the game ?

I simply love the feeling of having to hide and flee from bigger creatures, and I would like to have to face it a bit more, as the exploration is not really challenging for the moment

If the larger creatures roamed around more, they would be more threatening. Harder to predict where they will be.