It is nice to see that the distribution of votes is much better this time around. Anyway, I've voted now so thought I'd share some thoughts on a few of the photos.
17 - I really like the delicate exposure and the use of negative space. However, I'm not sure why that stick is in the bottom of the photo.
10 - A great idea and got my vote, but I think it could have been greatly improved with a couple of small changes. I think the photo would have been much more striking if a stainless steel knife had been used - the glint of light would have conveyed the sharpness of the blade.
Two other minor nitpicks - I would have liked to been able to see the point of the knife and a plain backgound would have been better.
11 - Great expression!