Ygritte is probably pretty average in real life... TV cameras just make everyone beautiful.
So, yeah, the scene with Jon was rather silly but I can understand the changes - they're going to have them captured and then meet back up with Halfhand for the resulting confrontation. Better TV story, really, and gives them a chance to begin the relationship between the two. Hopefully, they don't fuck up the rest between them.
Feels like I'm correct about the frog children. Unless they meet up later (doubt it), the job is Osha's. Absolutely don't get why she didn't stab Theon in his sleep at that point, given her character. So there's that.
The introduction of Roose Bolton was lacking - so much more there they could have fed off of. Needed a scene of him calling for Jamie's death for one. Really not setting things up for later.
So many other minor alterations that are hit and miss, but I really do not get the reason for Baelish to recognize Arya there. The books had her a complete mystery to all in Kings Landing... this seems, strange. I was hoping he'd just ignore her as a servent, which would have been more fitting. Ah well... see what they do with this
A simple souvenir of someone's kill
And like the sea
I'm constantly changing from calm to ill
Madness fills my heart and soul as if the great divide could swallow me whole
oh, how I'm breaking down