Great game!
Where this game excels is its atmosphere and simplicity. Though quite cheesy, I loved the sound and the various horror themes (poltergeist activity etc). There was no object or action that was key to completion too well hidden or obscure. At the same time, the extra tasks provided a little extra challenge that made me keep a keener eye out.
What I felt was a shame was that the additional items/photographs did not open up any new gameplay or reveal any additional plot (apart from the diary pages ofc). The additional tasks could have at least unlocked achievements.
Overall, despite obvious room for improvement, I think this game is better than the average point n click on this site and well worth a play! Good work! :)