I would love more little critters like birds, snakes and animals like that and I would love to have more passive monsters/animals. Its completely strange to have all those herbivores aggroing on you as soon as they see you..and have all those bad monsters going/flying around camps. How exactly is anyone still alive there? (They cant really fight unlike us)

The eccosystem is not really believeable imo. Too many aggressive animals and way too less normal ones. It would be cool to see young ones too and have their parents protect them if you go near them. Or let monsters be harmless until you go near their nests or attack one of them, then a herd could follow you.

Or maybe have passive monsters that love to run away from fights so you need to stun/sleep them or kill them fast.