Escalus wrote : a couple of things I haven't seen anyone ask about yet
possible spoiler bellow
[color=DFE7EE]1 hotel bill in Anna's room, any use?
2 Photo of Dad and Kim in Kim's room, any use? [/color]
Spoiler End
Finding 1 makes it more likely that Anna is infected, and if you ask her about it after finding her with Silvers then she and James will break up (although that doesn't make much difference by that point).
As for 2, I don't know. It could just be background colour. Alison in SD3 had something very similar.
Also re which pictures Mickey will accept... my observation has been that he really likes pictures of Anna, but he will only accept one of any other girl.
As for Ellie... spoiler below
[color=DFE7EE]If you've done the full six photo shoot with Jenny, then talk to Ellie and explore all the options before asking her if you can photograph her. She will go further because Jenny has gone further and they share everything[/color]