Pic 5: Figure RHS of shot - I see that too..
Pic 8: Cardboard cut-out monkeys in tree (x3) - Yep, those too
Pic 9: Ditto x4 - Cat/Owl and "spider" cutouts
Pic 10: Something in the middle of path ahead (those bloody monkeys again)! - Looks like a dog ot a pile of logs...
Pic 17: Figure in ground floor RHS window - yep
Pic 18: Figure in wood to left - yep
Pic 19: Monkeys in tree (again!) and spoooooky eyes in dark area bottom left. - ooh scary
Pic 25: Figure in reflection (ET?) - Not mocked up at all...
A lot of the added extras look like bad photoshop efforts, instead of stragegically placed cutouts.
But some look like those dodgy cats with glowing eyes my in-laws have to keep cats of their lawns.
The tower looks like the sort that are ten a penny in North American forests, but I've not seen a single one in the UK.
Guido, if they really did find a camera......They could have just pulled out the memory card. No leads required.