This is just absolutely amazing work. I love all the feels I get looking at it. I especially love how the older Arya looks shocked to be confronted with her former self and kinda sad as well, as though she knows what's to come and misses how it was knows it cannot change. And it's as though the other one is saying, "I'm still here. I'm still you and you're still me."
Anyway, LOVE, LOVE, LOVE it. And LOVE the eyes, the eyes are to DIE for and love the background, OMG, I LOVE IT ALL!!!
I absolutly love that contrast between this two versions of Arya - first one as The lost Arya and second one from King´s Landing time. I love that look in her eyes - one as stubborn little girl and the second one more serious - sad girl who fight for herself and her family, than killed someone and lost part of her soul. Just my iterpretation great work on one of my favorite character ever!