Great concept and lots of good partnership opportunities! It might be helpful to test your digital designs in small focus groups of potential end users. Especially as you are targeting Hispanic communities living abroad, it would be important that they can identify with the Granny personas.
I really love your idea for the We Love Reading kits. Reading stories out loud and discussing them in groups is an excellent way of sharing thoughts and working through trauma. Kids in refugee camps in Lebanon, Turkey and Jordan are constantly under stress and their parents might not be able to provide the time and attention needed. It's easy to implement and simple, but I'm sure will have a huge impact. Congratulations!
I'd also be happy to help think through what the WLK kit could look like.