So. As you know there are a lot of different creatures in TES3 most of them bites, but now then the games going to use Skyrim rules of wildlife, we really have to create some additional peaceful fauna. There are two types of this: "normal" - big creatures, that can be killed (like elks, rabbits, deers in Skyrim) and small ones, who only can be "collected" (like dragonflies, butterflies, small fishes etc).
My first minds and drawings are about small creatures. There are just first scetches, no details at all. Simply wants to know in what direction should I move in my concepts later.
______PLEASE_____write down what type of creatures from each picture do you prefer more (like: PIC1: 1,3. 2nd is sux).
PICTURE №1
Flying things. 1,5- dragonflies, 2-roach (to replace butterflies in some regions), 3-bee, 5-some kind of mollusk firefly (not really work enough on it).







That eggs got some kind of spikes on it, that firstly soft and after planting becames solid and rather sharp. But they are not only for defense of eggs, but for pretending them from drying. In the nights water condencate on that spikes and slowly stream into the area on the agg (a black line on it) that can absorb it. After a while, larva's came out and spread all over the land.
They are not protected by the adults Nixes anymore and must find a place for feeding themselves. They are rather vulnerable in that journey, so only their hard skin and carapase (that after became an inner bones of adults Nixes) can protect them from huge predators. When larva finds a free place for hunting it burrows like an antlion (Smithehammer told, that antlion would be a great type of lifeform for the ashlands, so...;)) Under the ground it sheds and after turns into pupa (we can't see them ingame, cause they are..right. under the ground), and here we got an awesome adult Nix! 
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PICTURE 2 "Bugs" and chitin
PICTURE 2
"Bugs" and chitin things. Can be placed underwater (especially 3,7) or on a ground.