The last part could easily cause RSI.
And some of the models are defective... they are missing some triangles. (they could be rendered as 'invisible' due to missing textures)
A. you need to work on plot/cohesion. B. some of the objects have too small a trigger-zone, like the dog, which can lead people to mistake the target-item for something OTHER than that.
yeah im kinda new to this... i knew i had too but i couldent be fucked xD i did it on my newer ones :3