Honestly I prefer the Elsa sketch tot he actual finished pic SO much more.
He looks like she has a bit too much booty in the pic but when you see the sketch its like a nice cocked hip instead. Also her head looks os flat in the coloured pic and then not in the sketch.
It makes me think of this tweet
I attached the SAI doc so you could have a poke at the layers (Theyre a disaster - I kept drawing on the wrong layers and stuff)