Jackson Overland Frost, Spirit of fun

I drew this a little while ago, i'm quite glad with the end result.
I absolutly love the concept of Guardians of Childhood and Rise of the Guardians. I saw the movie and loved the character designs and original story. I didn't get to read all the books of The Guardians of Childhood, but i'm working on that
The other characters are so amazing as well, i want to draw them too sometime
I only used pencils for this drawing, feedback is always welcome!

I didn't think up the pose myself, i found another Jack Frost drawing with this pose. I do not remember who made it. So if you are him/ her or know him/her, please notify me so i can say a proper thanks.

UPDATE:
I found the artist who thought up this pose! Go take a look, it's better than mine, by far haha: carina-dlr. Thank you so much for the inspiration your drawing gave me