I've put the link for the website I got the facial expression from on the game page, it's from Yumemishi, she edited a dozen of the official faces, and they're pretty good (especially like her yandere faces^^).
You're right for the talking and number of turns, I planned to do 2 talks option for each girl, and the number of turns was there to force the player to really choose who he's talking to ^^
I will edit the game with all routes after the jam is over, and I was thinking of adding some places you could check / items to give as well. I just got working on it a bit late honestly, but I'm glad you enjoyed it^^