Something about this seems off a little. I think it's soft, especially in the front center, and there appears to be some noise. I wouldn't give up on this concept as I think it has potential. Best of luck in the challenge.
while very pretty fruit, the composition lacks any meaning. I mean, its not telling us any story and maybe that's a lot to ask of a couple of raspberries, but I think without a background other objects in the still life, its rather..lifeless. :(