I thought there already was troll lore? It was actually very well written, I can't seem to find it though.
It was more directed to an evolutionary approach, whereby they were orcs whom lived within harsh weathers - growing very large and storing plenty of body fat to ensure that they keep warm, their strength derivative from their need to kill large snow-creatures. They had an inability to speak the native tongue due to their solitude, language was lost and they developed their own way of communication (grunts and other noises).
I'm not saying everything must be explained, but it's nice to see something other than "creator did it" for once.
These trolls just sounds like someone taken out of Tolkien's books without much amendment. Sure, LotC is meant to be loosely based upon them, but this is practically identical. You haven't much explained why an Orc turns to stone, the Creator 'forgot' to make them able to live in the light? Sounds like something a devout religious man may ramble.
This seems like a character profile of a generic troll more-so than anything (physical characteristics, habits & behaviours).
It's an alright idea - people want something similar to a Troll to roleplay and have for quite some time. However, I do not believe you have explained their origin with enough detail, it seems to me that you got a little lazy during this part and just resorted to the Creator explanation.
Most race proposals have an in-depth reason for how they have come to be and why they are in the world. It doesn't seem to make much sense for the Creator to be suddenly creating new creature, especially since their only purpose is to ransack and pillage.For what reason would the Creator have to do this, he already created plenty of life in the beginning of which have prospered - then just to create a Troll to cause misery?
Evil Creator.