Nicely done with well chosen backdrop; main issue is that you aren't really close enough to see texture of the popcorn, though most of us know it well. I think a macro of the corn would have been a good idea, though this is a solid pic! One other thing: what happened to the rest of the popcorn.... hmmm, going to make some now.
Clean composition, good sense of the smoothness of the container, and the brittleness of the popcorn. colouring of background complememts the box well too. Not somethging to really grab my eye though, despite the good lighting.
I really like your composition on this one. It's cute and a nice take on the Challenge. The popcorn (what remains of it!!) could have been a bit crisper, but overall, it is good.
I think if you had put the popcorn in a bowl, put some butter on them and taken a close up of the popcorn - it would have created a better texture effect.
Unfortunately you ate most of it! I feel (personal taste. . . no pun intended) that it would have bee more dramatic if there had been a volume of pop corn pouring out of the box filling the frame with more texture.