I'll start with this: I'm no paragon of art nor writing. If I was, I would be making big money publishing (then again, James Patterson still makes a killing… hmm.) All of this to say, you are free to ignore as many of these crits as you like.
like the men of fairy tales tales would.
Note to nix one of the "tales"
He still doesn't know where he is. His clothes still wet from whatever that damn soup was-
The transition into the second sentence is rough, I'd suggest either combining the two (something like "… where he is, his clothes still wet from…") or rewording the second sentence (something like "His clothes were still wet…")
Jack did not know what to do.
Should be "does not", keeping with the tense.
As a human being, it's generally agreed upon that one is not supposed to be up this high.
The beginning is a bit wonky, I think something like "Amongst human beings" would sound better as the sentence implies a mass agreement, but the beginning is only about one. But, I really like this line, especially for a person living in a time before aircraft (though I would still agree, even today.) ((Not a huge heights fan, if you can't tell.))
His mother was very happy and they lived well for sometime.
He just made very clear note of the fact that this was not his mother.
Jill, I'm scared.
Based on the previous colored line, I'm assuming this whole line is supposed to be colored. If not, ignore me.
Realizing his sleep was just that, just sleep, he fell to his knees.
I'd nix the second "just"
opening up a chest cavity that isn't really there.
"isn't" should be "wasn't" to keep with the tense.
then he will be Frost. Jack Frost.
I'd nix "Jack Frost." It feels really forward, if that makes sense. We already know this is Jack and this encompasses a multitude of myths and tales, let us put it together. But, this is a much more personal preference, so feel more than free to ignore it.
General thoughts:
I'm a bit torn on this. There are moments that I really like, but overall I think the piece struggles more than it does thrive. Firstly, it relies a lot on the backbone of older myths, leaving a lot unsaid under the assumption that people may know them. I have no issue with a retelling; another author, 
Gawain777 did a retelling of Daedalus that was really, really good, but where it lies in contrast to this is that that one works even if you don't know the original story, but this one is a lot, lot more confusing without knowing the fairy tales you're referencing. I'd honestly never heard of the whole "the Jack in the fairy tales is the same Jack" thing until now. On top of that, the transitions between the phases of Jack's life feel extremely abrupt, which could be fine if the story as a whole made more sense. I could be a dense asshole, but I honestly have very little idea of what happened. How the whole "trickster god" thing plays into it is lost on me.
Overall, I see the concept you're going for and I think there's something really interesting to be found, it just needs some work.
Keep up the good work, and good luck!
