You can not tell what the food items are, the back splash of the grill seems to the focal point of the photo and distracting, and the sign in the right top corner is blured and distracting from your indented subject.
Its best to make full use of the 640 pixel limit - you put yourself at a huge disadvantage if you don't. It would also be good to see some context here - who is eating this?
This looks like a heavily-cropped, low-resolution snap-shot of a kiosk. I don't find that it meets the guidelines of the challenge, and, aesthetically, it offers me nothing. Sorry, but that's my perception.
um. why? Not a compelling subject, no real connection to challenge. And while I don't care overmuch, people are going to ding you a lot because it's small.