Thank you everyone for all the feedback, I've been working through it while trying to add new features, and if something you've flagged up isn't in this build it's coming soon.

Quick list of changes:
Photo mode.
Improved movement / controls.
Slider added for fullscreen mode for those of you with performance issues on large monitors.
Reduced the Depth of Field blur effect.
Fix for retina Macs.
Fixed the bug on first play where it would only give the options of Continue / New Game, sigh.
Fixed saving issues with the treasures.
Internal changes which should help balance the performance from the CPU to the GPU more.
Other things which I've clearly forgotten ;)