Nice clean pic - yep - what I would have done perhaps: centered container with berries. To moist them a bit leave them in water for a couple of minutes. Getting rid of the left darkish line as it is a little distracting from the picture.
If your kids ate the raspberries, take a picture of the empty bowl. Yep, all clean...
I like this image a lot. Would not like to see it centered as one poster suggested. I think what you've done works really well.
As an aside: In the Current Entries view of all images, depending on how many come before, I often see my all-white plates beside your white background with red berries beside Bev's all-red tail light. I'd love to have all three images framed side-by-side like this on my wall.
Nice shot perfect DOF and great lighting.