Hi I'm from Taiwan and I'm a native Chinese speaker.
In my own opinion, I'd like to say : 我(有)看到一張您女兒們的照片，她們很可愛! (as a way of saying that you've seen a pic of her/his daughters and they're adorable. )
我希望可以再見到您，感謝您幫助我學習中文 (I'm not quite sure 'bout this, if you meant to say Thank you for helping me with my Chinese or something like this then that'll do^^ )
But frankly speaking, we don't really use 您 although it's a polite kind of 你 but honestly I think you can just say 你 instead of 您 ( just a personal opinion >__< )
** Next year shall be 明年 :)
we say 下個月 as 'next month' but we dont say 下個年 as 'next year' :)
And I'd say :
The reason why I say 我有看到一張你女兒們的照片.......is because she mentioned her daughters earlier and so you wanna express that you had seen a pic of her kids, and they're cute and so on; thus using '有+verb' will be emphatic ^_^
ex: I've been there before! 我之前有去過了!
I hope these could be of help :)