Well! one idea which has occurred to me during my time in FeralHeart would be an in-game GUI that would allow you to adjust things such as the positioning of the sun, ambient colours, cloud colours, the time of day, et cetera - much akin to what you can do in Second Life. The changes would only affect what you see and not others, and there could always be an option to re-synchronise with the default game time and settings.
In my opinion, this would be perfect for pictures - especially if you want something like a dramatic sunset shot. With FeralHeart as it is, a person has to wait around for a long while if they want a particular time of day - so why not allow them to adjust it themselves? :3
Also, here's a picture of the Second Life sky editor, so people whom don't play the game can get a vague idea of what I'm talking about:
(http://i.imgur.com/UNLvn.png)
Mayhaps something as complex as this wouldn't be able to be implemented, but it would still be nice to have a small "time of day" setting that you can adjust, and maybe choose from pre-defined settings such as "sunrise", "sunset", "noon", "night", and so on. :3