A lot of work needed to bring this into shape, but as long as pictures get more work and progress well, and if the story can take some turns and create surprises as you make choices every day? Will be interesting.
Gating some parts of progress behind progress with all three characters is not very fun - make sure to plan for the possibility that the MC wants to invest or not invest in some characters.
The menus and interface could some some work, particularly browsing photos and the phone remembering where the latest pic was located (for the MC)